I Suffer With Very Sensitive Skin And Have Recently Found

I suffer with very sensitive skin and have recently found out that what I may be feeling is a dust mite allergy. There are lists of simple o-t-c meds I can't take. Its easier just to list the ones I have found to be ok for me. I started taking 250mg a day -- a small capsule -- of oil of oregano. In the 2 weeks I have been taking the oreg. oil, the painful arthritis in my knees has almost disappeared, I am less sensitive to the feeling of these" no-see-ums" landing on my face and exposed skin, my feeling of a sick tummy early in the morning -- have to have something to eat very soon after rising -- has much improved. Are there any negative effects of taking this amount of oreg. oil daily? I also have a minor problem with Gluten. One of my sibs has severe Gluten problems and throughout the family, we include other types of allergies like lactose intolerance. PS: My son is doctor and has been very helpful except with this last episode with the dust mites -- had some help from a chat line with the Mayo Clinic.