Yes, Oregano oil not your standard culinary variety but (Origanum vulgare), a hardy perennial herb and a member of the mint (Lamiaceae) family, is an excellent booster for immunity. It is easy to grow in the Eastbay.
Proven to contain phenols: thymol, carvacrol, terpenes, rosmarinic acid. These antibiotic, anticeptic and analgesic and anti-inflammatory.
So it can be used for many health concerns, but I recommend it as a preventative measure taken in the morning for immunity. Because this last cold and flu season was a doozy and now allergy season is hit the Bay area hard with so many amazing blossoms and pollens.
It can be taken when higher exposure to pollens or colds/flu are around you but should not be taken indefintely ( Oregano oil is to boost not replace your own immunity).
The regular dose is 3 to 5 drops in a glass an 8 oz. glass of water. I cannot tolerate this high a dose, so I started with 1 drop in an 8 oz. glass/ mornings and now I take 2 drops every morning. The oil is highly concentrated distillation so do not exceed the recommended dosing.
I have found it to keep my health stronger ( from my patients and college students, etc.) and am happy to share this little easy wonder. You can also drop it in to your regular lemon water in the morning.
Contraindications: diabetic patients because it can interact with diabetic drugs, hemophiliacs, children or post surgery because it can cause more bleeding.