Medicinal use of Thyme (Thymus vulgaris) in naturopathic medicine

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Thyme (Thymus vulgaris) isn’t just a delicious kitchen herb—it’s also a powerful plant with a long history of medicinal use. From treating coughs to supporting digestion and fighting infections, thyme has earned its place in both traditional herbalism and modern natural medicine.

In this article, you’ll learn about thyme’s rich history, its active compounds, how it supports the respiratory and digestive systems, and how to use it safely for children and families.

A Brief History of Thyme in Herbal Medicine

Thyme has been used medicinally for thousands of years. Ancient Egyptians used it in embalming rituals due to its strong antibacterial properties. The Greeks and Romans valued thyme for both its scent and symbolism—Greek soldiers were given sprigs of thyme to boost bravery before battle, and the Romans used it in cooking, bathing, and medicine.

In the Middle Ages, thyme was believed to ward off nightmares and was placed under pillows to promote restful sleep. It was also applied topically to wounds to prevent infection. The medieval herbalist Hildegard of Bingen often recommended thyme for respiratory concerns, such as coughs and bronchial congestion.

While thyme was traditionally used based on experience and observation, modern research now helps us understand why it works so well—especially for respiratory and digestive health.

What Makes Thyme Medicinal?

Thyme contains a variety of compounds that give it its powerful health benefits:

• Thymol and Carvacrol: These are thyme’s primary essential oils, known for their strong antimicrobial and anti-inflammatory effects.
• Flavonoids: Antioxidants that protect cells from damage and help reduce inflammation.
• Rosmarinic Acid: A polyphenol that supports immune health and reduces inflammation.
• Terpenoids, Tannins, and Saponins: These support immune response, wound healing, and antimicrobial activity.

Together, these compounds help explain thyme’s traditional use for colds, coughs, sore throats, bloating, and even skin infections.

Is Thyme Safe for Children?

In general, thyme is safe for children when used in appropriate forms and doses. Thyme tea or glycerite tinctures are well-tolerated and widely used in pediatric herbal medicine. However, thyme essential oil should be used with caution, especially internally or in high doses, as it can be too strong for young children and sensitive individuals.

• Tea or tincture: Typically safe when used appropriately.
• Essential oil (internal use): Not recommended for children or during pregnancy.
• Topical or in mouthwash: Generally safe in diluted forms.

As always, speak with your healthcare provider or herbalist before using any herbal remedy with children.

Thyme for Respiratory Health

Thyme is one of the most helpful herbs for supporting the lungs—especially in cases of cough, bronchitis, asthma, or upper respiratory infections. It’s both antimicrobial (kills germs) and expectorant (helps clear mucus), and it can also calm spasmodic coughing.

Several clinical studies support its use:

• In patients with acute bronchitis, thyme extract significantly reduced coughing fits compared to placebo.1
• A combination of thyme and primrose root showed greater improvement in cough than placebo.2
• In children with mild to moderate asthma exacerbations, thyme syrup reduced coughing and improved breathing function.3

I often use thyme in combination herbal formulas for children with persistent cough, especially when wheezing, thick mucus, or a spasmodic cough is present.

Thyme for Digestive Support

Thyme also has a long-standing use in treating digestive complaints. It helps reduce bloating, gas, and intestinal discomfort by relaxing the muscles of the digestive tract (antispasmodic), stimulating digestion (carminative), and inhibiting gas-producing bacteria (antimicrobial).

Thyme can be useful in conditions such as:

• Gas and bloating
• Occasional indigestion
• Support for bacterial overgrowth in the gut (like SIBO)

It’s often included in herbal bitters or digestive teas. I may also use thyme in enteric-coated capsules for older children or teens with more complex digestive issues—but only under close supervision.

Thyme for Skin and Oral Health

Thyme’s antimicrobial and anti-inflammatory properties make it useful for skin conditions and oral health as well.

• Wound care: Historically used in poultices to disinfect and speed healing.
• Skin infections: Effective against acne, athlete’s foot, and ringworm.
• Mouthwash and oral care: Thyme can reduce gum inflammation and improve bad breath (halitosis), especially when used in herbal rinses after dental cleanings.4

One study even found thyme mouthwash helped reduce halitosis in patients with gingivitis.5 Its antifungal activity also makes it helpful as a supportive treatment for oral thrush or yeast overgrowth.

Thyme and Streptococcal Infections

Thyme’s active component carvacrol has shown antibacterial effects against Group A Streptococcus, the bacteria that causes strep throat. It may enhance the effectiveness of antibiotics like erythromycin or be used as supportive care.6 This doesn’t replace antibiotics for strep—but thyme may help reduce inflammation and speed healing when used alongside appropriate treatment.

A Note on Pregnancy and Breastfeeding

Thyme is generally safe in food amounts during pregnancy and lactation, and tea or tincture in moderate doses is likely compatible. However, thyme essential oil—especially taken internally—should be avoided during pregnancy and breastfeeding unless specifically recommended by a trained professional.

Summary

Thyme is a time-tested herb with well-documented benefits for respiratory, digestive, skin, and oral health. In my naturopathic practice, I use thyme frequently for children with cough, asthma, or gut issues—especially when we want something that’s effective, natural, and safe.

If you’re interested in trying thyme at home, I recommend:

• Making a warm thyme tea with honey for cough and sore throat.
• Using a thyme-based mouthwash for oral health.
• Working with your provider to find an appropriate glycerite or tincture formula if using it for asthma or digestion.

Disclaimer: This article is for educational purposes only and is not intended to diagnose, treat, or replace medical advice. Always consult your child’s healthcare provider before starting any herbal remedy or supplement.

References:

1. The Natural History. Pliny the Elder. John Bostock, M.D., F.R.S. H.T. Riley, Esq., B.A. London. Taylor and Francis, Red Lion Court, Fleet Street. 1855.
2. Hildegard of Bingen. Physica. (1150).
3. Stalh-Biskup, E, Saez, F. Thyme: The Genus Thymus. (2002.)
4. Mills, S, Bone, K. (2005). The Essential Guide to Herbal Safety. Elsevier.
5. Ali, B., Al-Wabel, N. A., Shams, S., Ahamad, A., Khan, S. A., & Anwar, F. (2015). Essential oils used in aromatherapy: A systemic review. Asian Pacific Journal of Tropical Biomedicine, 5(8), 601-611. DOI: 10.1016/j.apjtb.2015.05.007
6. Baser, K. H. C. (2008). Biological and pharmacological activities of carvacrol and carvacrol bearing essential oils. Current Pharmaceutical Design, 14(29), 3106-3119. DOI: 10.2174/138161208786404227
7. Petersen, M., & Simmonds, M. S. J. (2003). Rosmarinic acid. Phytochemistry, 62(2), 121-125. DOI: 10.1016/S0031-9422(02)00513-7
8. Stahl-Biskup, E., & Sáez, F. (2002). Thyme: The Genus Thymus. Taylor & Francis. ISBN: 9780415284882\
9. 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. PMID: 17063641.
10. Gruenwald J, Graubaum HJ, Busch R. Efficacy and tolerability of a fixed combination of thyme and primrose root in patients with acute bronchitis. A double-blind, randomized, placebo-controlled clinical trial. Arzneimittelforschung. 2005;55(11):669-76. doi: 10.1055/s-0031-1296916. PMID: 16366041.
11. Sienkiewicz M, Łysakowska M, Denys P, Kowalczyk E. The antimicrobial activity of thyme essential oil against multidrug resistant clinical bacterial strains. Microb Drug Resist. 2012 Apr;18(2):137-48. doi: 10.1089/mdr.2011.0080. Epub 2011 Nov 21. PMID: 22103288.
12. 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 Jan 1;52(1):9-15. doi: 10.15586/aei.v52i1.964. PMID: 38186189.
13. Chevallier, Andrew. (2000). “Encyclopedia of Herbal Medicine.” DK Publishing.
14. Nazzaro, F., Fratianni, F., De Martino, L., Coppola, R., & De Feo, V. (2013). “Effect of Essential Oils on Pathogenic Bacteria.” Pharmaceuticals, 6(12), 1451–1474. DOI: 10.3390/ph6121451
15. Chevallier, Andrew. (2000). “Encyclopedia of Herbal Medicine.” DK Publishing.
16. Altındal D, Deveci KC, Öner Talmaç AG, Talmaç AC, Çalışır M. Effects of thyme on halitosis in gingivitis patients: Can thyme mouthwash prevent halitosis-A randomized trial. Int J Dent Hyg. 2023 May;21(2):426-432. doi: 10.1111/idh.12672. Epub 2023 Feb 27. PMID: 36760146.
17. Jafri H, Ahmad I. Thymus vulgaris essential oil and thymol inhibit biofilms and interact synergistically with antifungal drugs against drug resistant strains of Candida albicans and Candida tropicalis. J Mycol Med. 2020 Apr;30(1):100911. doi: 10.1016/j.mycmed.2019.100911. Epub 2019 Nov 7. PMID: 32008964.
18. Magi G, Marini E, Facinelli B. Antimicrobial activity of essential oils and carvacrol, and synergy of carvacrol and erythromycin, against clinical, erythromycin-resistant Group A Streptococci. Front Microbiol. 2015 Mar 3;6:165. doi: 10.3389/fmicb.2015.00165. PMID: 25784902; PMCID: PMC4347498.
19. Veldman LBM, Belt-Van Zoen E, Baars EW. Mechanistic Evidence of Andrographis paniculata (Burm. f.) Wall. ex Nees, Pelargonium sidoides DC., Echinacea Species and a Combination of Hedera helix L., Primula veris L./Primula elatior L. and Thymus vulgaris L./Thymus zygis L. in the Treatment of Acute, Uncomplicated Respiratory Tract Infections: A Systematic Literature Review and Expert Interviews. Pharmaceuticals (Basel). 2023 Aug 24;16(9):1206. doi: 10.3390/ph16091206. PMID: 37765014; PMCID: PMC10537612.
20. Wagner L, Cramer H, Klose P, Lauche R, Gass F, Dobos G, Langhorst J. Herbal Medicine for Cough: a Systematic Review and Meta-Analysis. Forsch Komplementmed. 2015;22(6):359-68. doi: 10.1159/000442111. Epub 2015 Dec 14. PMID: 26840418.
21. Abers M, Schroeder S, Goelz L, Sulser A, St Rose T, Puchalski K, Langland J. Antimicrobial activity of the volatile substances from essential oils. BMC Complement Med Ther. 2021 Apr 17;21(1):124. doi: 10.1186/s12906-021-03285-3. PMID: 33865375; PMCID: PMC8053297.