People sometimes use oregano for certain lung, stomach, and skin conditions, but there is no good scientific evidence to support these uses.
In foods and beverages, oregano is used as a spice and preservative.
How does it work ?
Uses & Effectiveness ?
Possibly Effective for
- High cholesterol. Clinical research shows that taking oregano after each meal for 3 months can reduce low-density lipoprotein (LDL or “bad”) cholesterol and increase high-density lipoprotein (HDL or “good”) cholesterol in people with high cholesterol. However, total cholesterol and triglyceride levels are not affected.
- Parasites in the intestines. Taking oil of oregano for 6 weeks can kill the parasites Blastocystis hominis, Entamoeba hartmanni, and Endolimax nana.
Insufficient Evidence for
- Infection of the intestines by parasites. Some early research shows that taking oregano leaf oil might help kill certain types of parasites. But these parasites usually do not require medical treatment.
- Wound healing. Early research shows that applying an oregano extract to the skin twice daily for up to 14 days after a minor skin surgery might reduce the risk of infection and improve scars.
- A mild form of gum disease (gingivitis).
- Athlete's foot (Tinea pedis).
- Canker sores.
- Common cold.
- Flu (influenza).
- Indigestion (dyspepsia).
- Infections of the kidney, bladder, or urethra (urinary tract infections or UTIs).
- Insect repellant.
- Joint pain.
- Menstrual cramps (dysmenorrhea).
- Muscle pain.
- Ringworm (Tinea corporis).
- Ringworm of the scalp (Tinea capitis).
- Rough, scaly skin on the scalp and face (seborrheic dermatitis).
- Scaly, itchy skin (psoriasis).
- Swelling (inflammation) of the main airways in the lung (bronchitis).
- Swelling (inflammation) of the nasal cavity and sinuses (rhinosinusitis).
- Varicose veins.
- Other conditions.
When applied to the skin: There isn't enough reliable information to know if oregano oil is safe to apply to the skin. It may cause irritation when applied in concentrations greater than 1%.
Special Precautions and Warnings
Allergies: Oregano can cause reactions in people allergic to Lamiaceae family plants, including basil, hyssop, lavender, marjoram, mint, and sage.
Surgery: Oregano might increase the risk of bleeding. People who use large doses of oregano should stop 2 weeks before surgery.
Lithium interacts with OREGANO
Oregano might have an effect like a water pill or "diuretic." Taking oregano might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.
Be cautious with this combination
- For intestinal parasites: 200 mg of oil of oregano three times daily for 6 weeks.
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