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Oregano Oil and Allergies

What are allergies?

An allergy or atopy is an abnormal response of the immune system to often harmless substances known as allergens. When a person is allergic to something, his body produces antibodies that release chemicals called Histamines to the bloodstream, which act on various parts of the body including the nose, throat, lungs, skin, gastrointestinal tract and in severe cases, the blood and the lungs producing some changes.

Allergies can be caused by either host or environmental factors. Host factors are those inherent within a person such as heredity, age and sex while environmental factors refer to those which can be found in the surroundings. Environmental factors or foreign substances are the predominant cause of allergies.

Common symptoms of allergies include sneezing, itching, swelling and rashes. Allergens can also cause severe hypersensitivity reactions called anaphylaxis, which manifest in life-threatening symptoms such as a huge drop in blood pressure and difficulty of breathing.

How can oregano oil reduce the risk of your allergies?

Oregano oil contains carvacrol which according to studies have antiseptic and anti-inflammatory properties (Landa, et al., 2009). Allergies can sometimes be caused by microorganisms and often produce inflammation, thus making oregano oil a commonly used essential oil in providing support for the standard treatment of allergies.

Rosmarinic acid, a component of oregano oil has proven anti-inflammatory and anti-allergic effects (Sanbongi, et al., 2004). Recent studies have used it for allergic asthma and seasonal allergic conjunctivitis (SAR) (Osakabe, et al., 2004).

How can oregano oil be used in allergies?

Oregano oil can be used in allergies by taking it internally. This is only for healthy adults who are not taking medications and supplements. It’s not for pregnant and lactating mothers. To do this, four to six drops of oregano oil can be mixed with a glass of juice or honey and then ingested. Follow up with another glass of water to wash it out. This will help relieve symptoms such as sneezing, runny nose and itching.

You can also place diluted oregano oil under the nose to relieve your runny nose and teary eyes or place a few drops of diluted oregano oil under the tongue for systemic results.

Remember that even though oregano oil can relieve allergies, there are also some people who may be allergic to it. It is best to first conduct an allergy test before using the oil to ensure safety.

Oregano oil’s medicinal properties are truly remarkable. Try using this miracle substance and you may find yourself needing your antihistamines much less than before.


Landa P., Kokoska L., Pribylova M., Vanek T. and Marsik P. In vitro anti-inflammatory activity of carvacrol: Inhibitory effect on COX-2 catalyzed prostaglandin E2 biosynthesis. Archives of Pharmacal Research. 2009. 32(1): 75-78.

Osakabe N., Takano H., Sanbongi C., Yasuda A., Yanagisawa R., Inoue K. and Yoshikawa T. Anti-inflammatory and anti-allergic effect of rosmarinic acid (RA); inhibition of seasonal allergic rhinoconjunctivitis (SAR) and its mechanism. BioFactors. 2004; 21(1-4): 127-131.

Sanbongi C., Takano H., Osakabe N., Sasa N., Natsume M., Yanagisawa R., Inoue K.I., Sadakane K., Ichinose T. and Yoshikawa T. Rosmarinic acid in perilla extract inhibits allergic inflammation induced by mite allergen, in a mouse model. Clinical and Experimental Allergy 2004; 34(6): 971-977.