For fifteen months I ve had small red bumps or pustules on my scalp that eventually dry up and often turn white. I ve seen the dermotogist a number of times. We ve done biopsies, treated with antibiotics, anti fungal and steroid topical drugs. No matter what I tried including natural supplements like colloidal silver, tea tree oil or oil of oregano, nothing has worked. I ve been diagnosed with Lyme but this isn t the typical bullseye rash associated with that. Just got tested for food allergies including gluten. These bumps are terribly itchy and annoying. I ve had a suppressed immune system for many years and wondering if this could be an autoimmune response if not a food sensitivity. Any thoughts?