Essential Oils for Cough: 8 Best Oils and How to Use Them

The best essential oils for a cough are eucalyptus, thyme and peppermint, and they work best when you breathe them in from a diffuser or a bowl of steam, or dilute them in coconut oil and rub them on your chest.12 Eucalyptus is my number one oil to open up the airways.7

A cough is your airways' own cleaning reflex, and most coughs that last less than 3 weeks come with a respiratory infection, usually a virus.8 A wet cough is your body moving mucus up and out, while a dry, tickly cough comes from an irritated lining that needs calming, so the oil that helps most depends on which kind you have. Traditional Chinese medicine sees it the same way: the phlegm and mucus that build up with bronchitis are dampness, and the goal is to help your body expel it.2 These oils support that work by thinning mucus, helping your lungs clear it and cooling the tickle, while rest, warmth, steam and honey give a body designed to heal what it needs to finish the job.

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Cold and flu season is a good time to stock these oils at home, and eucalyptus and its main compound have done well in trials of both adults and children. In a randomized, placebo-controlled trial of 242 adults with acute bronchitis, the medical name for a chest cold, capsules of cineole, eucalyptus oil's main compound, eased coughing fits within 4 days.9 And in a randomized trial of 138 children with colds and a night cough, a bedtime chest rub made with camphor, menthol and eucalyptus oil helped the children and their parents sleep better than plain petroleum jelly did.5

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What are the best essential oils for a cough?

Eucalyptus tops this list because it has the most human research on coughs, while lemon, tea tree and frankincense close it on the strength of their traditional use, and each card shows you exactly how to use the oil and what was studied.

How do essential oils work in your body when you cough?

The lining of your airways makes mucus to catch germs and irritants, and tiny hairs called cilia sweep it upward, a little like a slow conveyor belt carrying it out of your lungs.322 When a cold or chest infection floods that system with mucus, coughing clears whatever the belt can't move fast enough, so a cough is part of your body's healing, and essential oils support that clearing work as soon as you breathe them in.

Chinese medicine adds a second way to read a cough, by whether it's wet or dry and cold or hot. I read the oils the same way: thyme and oregano are hot oils, best for cold, wet coughs and chills, while eucalyptus and peppermint are cooling oils for thick congestion.1 So when you feel chilled and your cough is wet and rattly, the hot oils fit best, and when your chest feels thick and stuffed up, the cooling ones do. Chinese medicine also teaches combining a cooling oil with a warming one, which is what my eucalyptus-and-thyme blend does.1211

Essential oils for a wet cough vs. a dry cough

Start by noticing whether anything comes up when you cough, because a wet cough and a dry cough call for different oils.

For a wet cough with mucus and phlegm

When your cough is wet and rattly, eucalyptus and thyme do the most, with rosemary and oregano as partners.1 Eucalyptus has the deepest human research, thanks to trials of its main compound. In the 242-adult trial, 121 people with a chest cold took 200 mg capsules of cineole three times a day and 121 took placebo capsules, and neither the people nor the researchers knew who got what. Breathlessness and the amount of phlegm improved about equally in both groups, but coughing fits improved nearly twice as much with cineole: by 1.18 points on a 0-to-5 scale after 4 days, against 0.64 points with placebo. The overall bronchitis score improved by 3.55 points, against 2.91.9

A capsule distilled from eucalyptus, sweet orange, myrtle and lemon oils points the same way. In the 413-adult trial, people who took 300 mg four times a day saw their coughing fits drop by 62.1% from day 1 to days 7 to 9, against 49.8% with placebo, and they lost less sleep to night-time coughing.13 In a second randomized, placebo-controlled trial of 676 adults with a chest cold, about as many people improved within a week on the capsule as on the antibiotic cefuroxime, and more than on placebo, and researchers from the capsule's maker took part in both trials.23 Most short-lived coughs come from viruses, so a natural capsule that kept pace with an antibiotic is well worth knowing about.8

Thyme is the other great oil for a wet cough, and as I explained in a video on fall essential oils, "Thyme oil is a great expectorant. It's one of the best essential oils if you've got phlegm and mucus in your throat."7 Breathing thyme oil itself eased coughing in a randomized trial of 140 hospitalized COVID-19 patients. There was no placebo and people knew which treatment they got, but after inhaling it three times a day for 5 days, they had less cough, breathlessness and phlegm than patients on routine care alone.24 And in a 2024 placebo-controlled trial of 60 children aged 5 to 12 with asthma flares, a thyme-herb syrup given alongside their usual care eased the cough that came on with activity.25

For a wet cough at home, breathe eucalyptus or thyme from a bowl of steam during the day, and at night rub a diluted blend on your chest and stand in a hot shower with the water hitting your chest, the way I recommend for any respiratory infection.12

For a dry, tickly or night-time cough

A dry cough brings nothing up, because it comes from an irritated lining and a cough reflex that fires too easily, so the goal is to calm the tickle and soothe your throat. For the tickle itself, peppermint is the oil to use. In the study in which each of 12 healthy adults tried both menthol and a plain vapor, three short breaths of menthol raised the amount of irritant it took to trigger a cough by about 25%, though not everyone responded.4 For a scratchy throat that keeps the cough going, our guide to essential oils for sore throat has more blends, and if your cough comes with a stuffy nose and the rest of a cold, see essential oils for colds.

Honey belongs right beside these oils for a dry, night-time cough, because food is medicine here too. In a Cochrane review of 6 randomized trials in 899 children, honey eased how often they coughed more than a placebo did, and it may work about as well as the cough medicine dextromethorphan and better than the antihistamine diphenhydramine.26 By comparison, a Cochrane review of 29 placebo-controlled trials in 4,835 people found no good evidence for or against over-the-counter cough medicines.27 Stir a spoonful of Manuka honey into warm tea before bed, or make our homemade cough syrup.

If your child is coughing through the night, a chest rub at bedtime can help you both sleep, and the camphor-free homemade rub in the recipes below suits children 6 and older. In the 138-child trial, a rub of camphor, menthol and eucalyptus oil on the chest and neck before bed eased the cough more than no treatment did, with an edge over petroleum jelly on the cough alone too small to be sure of.5 It also helped the children sleep better than petroleum jelly or no treatment, so their parents slept better as well, and with cough, congestion and sleep scored together, it came out ahead of petroleum jelly too.5

How to use essential oils for a cough

Using an essential oil diffuser for a cough

A diffuser is the easiest way to use these oils, especially at night when a cough keeps you up. Add 3 to 5 drops per 100 mL of water, run it 30 to 60 minutes at a time with breaks, and keep the room ventilated.1 For a dry cough, put peppermint, frankincense and lemon by the bed, and for a wet cough, run eucalyptus, rosemary and lemon during the day. Both blends are in the recipes below. I also recommend a humidifier in your bedroom while you sleep to loosen mucus.6

Steam and the shower

Steam carries these oils straight into your airways. My home remedy for a cold is to mix eucalyptus and peppermint, add ginger oil, drape a towel over your head, lean over a bowl of warm water and take deep breaths in and out, or put the same oils in a diffuser.7 For a cough, use 2 to 3 drops of eucalyptus or 1 drop of thyme in the bowl.1 In the shower, shake 3 drops of eucalyptus onto the floor away from the stream of water and breathe the steam while the hot water warms your chest.1

Chest rubs and how to dilute them

For a chest rub, mix 2 to 3 drops into each teaspoon of coconut oil or another carrier oil, a 2% to 3% blend, and rub it on your chest, upper back and the back of your neck.1 Thyme and oregano are hot oils, so keep each to 1 drop per teaspoon, about 1%.1 A teaspoon of carrier oil is about 5 mL, and about 20 drops of essential oil make 1 mL, which is how the table below turns drops into a strength.1 At bedtime, you can also massage the same blend into your feet and pull on warm socks as a soothing end to the day.

Can you take essential oils by mouth for a cough?

Yes, oils from foods you already eat, such as lemon and peppermint, can be taken by the drop in small doses, while eucalyptus and tea tree belong in steam, a diffuser or a rub.628 Lemon is the easiest place to start, with a drop in a spoonful of Manuka honey or a mug of warm tea, as in the recipe below.12 Oregano oil goes in as an emulsified, food-grade capsule for a short course of up to 10 days in a row.17

Essential oil recipes for a cough

These eight recipes cover a wet cough, a dry cough, a child's room and a sick house, with exact drops you can follow. They're for adults unless a recipe says otherwise, and the dilutions follow the table above. The first two start from a blend I've recommended on video: "If you have a cold or bronchitis, I recommend mixing some eucalyptus oil and thyme oil together with some lemon oil and taking deep breaths."11

This follows my own vapor rub of olive oil, coconut oil, beeswax, peppermint and eucalyptus, without the camphor in store-bought rubs, and you'll find the original in my homemade vapor rub recipe.12

Are essential oils safe for a cough?

Yes, when you dilute them, use them by the drop and store them like any medicine, because they're concentrated plant oils and a few drops do the work.1

Interaction check: Moderate. In one documented case, a woman taking a warfarin-type blood thinner reached an INR of 6.42 after a week of daily oregano tea, so if you take a blood thinner, skip oregano capsules, or have your INR checked when you start or stop a course.29

Never swallow the tree oils. Eucalyptus and tea tree oils are dangerous to ingest, and I never recommend tea tree oil internally.612 Among 109 young children hospitalized after swallowing eucalyptus oil, 2 to 3 mL brought on drowsiness and 5 mL or more caused serious poisoning, so keep bottles and rubs locked away.301

Children. Keep peppermint and eucalyptus away from the face of a child under 6, never put a rub under a young child's nose, and diffuse lightly and briefly.1 In one documented case, a toddler had severe breathing trouble after a vapor rub was put directly under her nose.31 Keep rubs on the chest and back, away from the eyes and nose: in the rub trial, parents reported mild burning of the skin in 28% of the children, of the eyes in 16% and of the nose in 14%. Use the children's dilution in the table from age 2.51 Honey isn't for babies under 1.32

Asthma. Strong scents can bother sensitive airways, so start with 1 to 2 drops in a ventilated room for a short session, stop if wheezing or coughing gets worse, and keep your rescue plan as prescribed. See essential oils for asthma for more.

Skin, pregnancy and pets. Patch test a diluted blend on your inner forearm for 24 hours, and keep skin treated with cold-pressed lemon out of the sun for 12 hours.1 In pregnancy, skip rosemary, thyme, oregano, clary sage, myrrh and cedarwood, while lemon, diffused, is a gentle choice.16 Cats can't process many oils, so keep tea tree, citrus and peppermint away from them (see essential oils for pets).1

When a cough needs a doctor. See a doctor for a cough with bloody mucus, shortness of breath or trouble breathing, a fever that lasts longer than 5 days or reaches 104°F or higher, symptoms that last more than 3 weeks, or repeated bouts of bronchitis.33

The bottom line

Essential oils for cough: frequently asked questions

References

1. Axe J. Top 50 Healing Herbs & Essential Oils. DrAxe.com protocol; 2026 ("Read This First: Essential oil safety & dilution," the page before p. 40: dilution chart for adults, children 2 to 6 and sensitive skin, phototoxic citrus oils, patch test, pregnancy, babies and kids, pets, diffusing 3 to 5 drops per 100 mL for 30 to 60 minutes; Frankincense, p. 40: best for calm breathing, "Alpha-pinene opens the airways," diffuse 3-5 drops, inhale from palms, one of the gifts brought to the Christ child; Eucalyptus, p. 41: best for congestion, cough, sinus pressure and stuffy airways, top uses ranked sinus congestion then cough and bronchitis, steam 2-3 drops, diffuse 3-5 drops, chest rub 2-3%, shower 3 drops on the floor, "1,8-cineole thins mucus and calms airway inflammation"; Peppermint, p. 41: diffuse 2-3 drops, 1-2 drops on a tissue, menthol and cold receptors (TRPM8); Tea Tree and Lemon, p. 42; Oregano, p. 43: respiratory support, topical 1% maximum, diffuse 1-2 drops briefly, emulsified food-grade capsule, Chinese medicine profile hot, best for cold, damp, congested conditions; Rosemary, p. 43: warming, diffuse 3-5 drops; Thyme, p. 46: best for cough and airways, steam 1 drop, topical 1% maximum, Chinese medicine profile hot, best for cold, wet coughs and chills; "Your Natural Medicine Cabinet": cold and flu kit).
2. Axe J. How to Prevent & Heal Cold & Flu Naturally (Foods, Supplements, & Herbs for Rapid Recovery). The Dr. Josh Axe Show. 2024 (thyme tea simmered 30 to 40 minutes at 15:16; phlegm and mucus in bronchitis as dampness to expel at 18:09; a coconut-oil balm on the chest in a hot shower for a respiratory infection at 22:14; lemon oil and the lymphatic system at 22:26; eucalyptus rubbed on the chest with coconut oil for bronchitis and productive phlegm at 23:00; YouTube: https://www.youtube.com/watch?v=jw-cciZ5TTY&t=1380s).
3. Juergens LJ, Worth H, Juergens UR. New Perspectives for Mucolytic, Anti-inflammatory and Adjunctive Therapy with 1,8-Cineole in COPD and Asthma: Review on the New Therapeutic Approach. Adv Ther. 2020;37(5):1737-1753. doi:10.1007/s12325-020-01279-0
4. Wise PM, Breslin PA, Dalton P. Sweet taste and menthol increase cough reflex thresholds. Pulm Pharmacol Ther. 2012;25(3):236-41. doi:10.1016/j.pupt.2012.03.005
5. Paul IM, Beiler JS, King TS, Clapp ER, Vallati J, Berlin CM Jr. Vapor rub, petrolatum, and no treatment for children with nocturnal cough and cold symptoms. Pediatrics. 2010;126(6):1092-9. doi:10.1542/peds.2010-1601
6. Axe J. Ancient Remedies: Secrets to Healing with Herbs, Essential Oils, CBD, and the Most Powerful Natural Medicine in History. Little, Brown Spark (Hachette Book Group); 2021 (internal use limited to oils from commonly eaten plants, 1 or 2 drops, p. 146; tree oils including eucalyptus and tea tree dangerous to ingest, p. 147; oregano oil, no more than 14 days in a row by mouth and none in pregnancy; bronchitis: a humidifier in the bedroom at night to loosen mucus).
7. Axe J. Fall Essential Oils for Colds, Sore Throats and More. Dr. Josh Axe on YouTube. October 18, 2017 (thyme oil as an expectorant for phlegm and mucus at 0:32; eucalyptus, peppermint and ginger steam under a towel, or a diffuser, at 1:43; peppermint and menthol open the airways at 2:54; oregano oil for kicking a flu at 5:41 and no more than 10 days in a row internally at 6:02; eucalyptus "the number one" oil to open the airways, with coconut oil on the chest and a hot shower, at 8:14).
8. Irwin RS, French CL, Chang AB, Altman KW. Classification of Cough as a Symptom in Adults and Management Algorithms: CHEST Guideline and Expert Panel Report. Chest. 2018;153(1):196-209. doi:10.1016/j.chest.2017.10.016
9. Fischer J, Dethlefsen U. Efficacy of cineole in patients suffering from acute bronchitis: a placebo-controlled double-blind trial. Cough. 2013;9(1):25. doi:10.1186/1745-9974-9-25
10. Kemmerich B, Eberhardt R, Stammer H. Efficacy and tolerability of a fluid extract combination of thyme herb and ivy leaves and matched placebo in adults suffering from acute bronchitis with productive cough. A prospective, double-blind, placebo-controlled clinical trial. Arzneimittelforschung. 2006;56(9):652-60. doi:10.1055/s-0031-1296767
11. Axe J. 5 Benefits of Thyme Essential Oil. Dr. Josh Axe on YouTube. July 26, 2016 (eucalyptus, thyme and lemon oils breathed in over hot vapor, or in coconut oil on the chest before a hot shower, for a cold or bronchitis, at 1:54; thyme oil for opening up the airways at 2:18).
12. Axe J. Top 5 Essential Oils for Allergies & DIY Vapor Rub. Dr. Josh Axe on YouTube. March 30, 2017 (a cooling oil with a warming oil, from Chinese medicine, at 1:43; eucalyptus "the king of opening up the respiratory airways" at 4:05; lemon oil in ginger tea or Manuka honey at 5:49; never tea tree oil internally at 7:02; vapor rub of olive oil, coconut oil, beeswax, peppermint and eucalyptus at 8:03).
13. Gillissen A, Wittig T, Ehmen M, Krezdorn HG, de Mey C. A multi-centre, randomised, double-blind, placebo-controlled clinical trial on the efficacy and tolerability of GeloMyrtol® forte in acute bronchitis. Drug Res (Stuttg). 2013;63(1):19-27. doi:10.1055/s-0032-1331182
14. Kemmerich B. Evaluation of efficacy and tolerability of a fixed combination of dry extracts of thyme herb and primrose root in adults suffering from acute bronchitis with productive cough. A prospective, double-blind, placebo-controlled multicentre clinical trial. Arzneimittelforschung. 2007;57(9):607-15. doi:10.1055/s-0031-1296656
15. Morice AH, Marshall AE, Higgins KS, Grattan TJ. Effect of inhaled menthol on citric acid induced cough in normal subjects. Thorax. 1994;49(10):1024-6. doi:10.1136/thx.49.10.1024
16. Millqvist E, Ternesten-Hasséus E, Bende M. Inhalation of menthol reduces capsaicin cough sensitivity and influences inspiratory flows in chronic cough. Respir Med. 2013;107(3):433-8. doi:10.1016/j.rmed.2012.11.017
17. Satyal P, Jones TH, Lopez EM, McFeeters RL, Ali NA, Mansi I, et al. Chemotypic Characterization and Biological Activity of Rosmarinus officinalis. Foods. 2017;6(3):20. doi:10.3390/foods6030020
18. Ben-Arye E, Dudai N, Eini A, Torem M, Schiff E, Rakover Y. Treatment of upper respiratory tract infections in primary care: a randomized study using aromatic herbs. Evid Based Complement Alternat Med. 2011;2011:690346. doi:10.1155/2011/690346
19. Carson CF, Hammer KA, Riley TV. Melaleuca alternifolia (Tea Tree) oil: a review of antimicrobial and other medicinal properties. Clin Microbiol Rev. 2006;19(1):50-62. doi:10.1128/CMR.19.1.50-62.2006
20. Hamidpour R, Hamidpour S, Hamidpour M, Shahlari M. Frankincense (rǔ xiāng; boswellia species): from the selection of traditional applications to the novel phytotherapy for the prevention and treatment of serious diseases. J Tradit Complement Med. 2013;3(4):221-6. doi:10.4103/2225-4110.119723
21. The Holy Bible, King James Version. Project Gutenberg eBook #10 (Matthew 2:11). Verse text quoted from this file.
22. Hasani A, Pavia D, Toms N, Dilworth P, Agnew JE. Effect of aromatics on lung mucociliary clearance in patients with chronic airways obstruction. J Altern Complement Med. 2003;9(2):243-9. doi:10.1089/10755530360623356
23. Matthys H, de Mey C, Carls C, Ryś A, Geib A, Wittig T. Efficacy and tolerability of myrtol standardized in acute bronchitis. A multi-centre, randomised, double-blind, placebo-controlled parallel group clinical trial vs. cefuroxime and ambroxol. Arzneimittelforschung. 2000;50(8):700-11. doi:10.1055/s-0031-1300276
24. Öner U, Cengiz Z. The effects of aromatherapy with thyme oil on disease symptoms, vital findings, and hemodynamic parameters in COVID-19 patients. Explore (NY). 2024;20(4):544-553. doi:10.1016/j.explore.2023.12.004
25. Eskandarpour E, Ahadi A, Jazani AM, Azgomi RND, Molatefi R. Thymus vulgaris ameliorates cough in children with asthma exacerbation: a randomized, triple-blind, placebo-controlled clinical trial. Allergol Immunopathol (Madr). 2024;52(1):9-15. doi:10.15586/aei.v52i1.964
26. Oduwole O, Udoh EE, Oyo-Ita A, Meremikwu MM. Honey for acute cough in children. Cochrane Database Syst Rev. 2018;4(4):CD007094. doi:10.1002/14651858.CD007094.pub5
27. Smith SM, Schroeder K, Fahey T. Over-the-counter (OTC) medications for acute cough in children and adults in community settings. Cochrane Database Syst Rev. 2014;2014(11):CD001831. doi:10.1002/14651858.CD001831.pub5
28. Axe J. Dangers of Essential Oils: Top 10 Essential Oil Mistakes to Avoid | Dr. Josh Axe. The Dr. Josh Axe Show. 2017 (oils never to take internally, including eucalyptus, and oils fine in small doses, including peppermint and lemon, at 2:19; smaller amounts and a carrier oil for children at 7:13).
29. Beghriche I, Belhachem A, Hamidene I, Fendri AH. [Origanum vulgare and hemorrhagic risk, about a case]. Ann Cardiol Angeiol (Paris). 2025;74(1):101856. doi:10.1016/j.ancard.2024.101856
30. Tibballs J. Clinical effects and management of eucalyptus oil ingestion in infants and young children. Med J Aust. 1995;163(4):177-80. doi:10.5694/j.1326-5377.1995.tb124516.x
31. Abanses JC, Arima S, Rubin BK. Vicks VapoRub induces mucin secretion, decreases ciliary beat frequency, and increases tracheal mucus transport in the ferret trachea. Chest. 2009;135(1):143-148. doi:10.1378/chest.08-0095
32. Centers for Disease Control and Prevention. Botulism Prevention (infant botulism: do not feed honey to a child who is younger than 1 year old). CDC; February 26, 2026.
33. Centers for Disease Control and Prevention. Chest Cold (Acute Bronchitis) Basics. CDC; July 2, 2025 ("When to seek medical care": fever that lasts longer than 5 days or fever of 104°F or higher; cough with bloody mucus; shortness of breath or trouble breathing; symptoms that last more than 3 weeks; repeated episodes of bronchitis).
34. Axe J. How to Boost Your Immune System Naturally | Q&A with Dr. Josh Axe. The Dr. Josh Axe Show. 2023 (a cough and cold that hangs on for a month: cupping to break up phlegm, at 24:10).

Dr. Josh Axe, DC, DNM, CNS

Doctor of Natural Medicine · Founder, DrAxe.com

Dr. Axe is a certified doctor of natural medicine, clinical nutritionist, and multiple New York Times bestselling author. He has spent 20+ years in clinical practice helping people heal at the root cause and founded one of the most-visited natural-health platforms in the world.

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