Gerribear did you get the penicillin allergy test done recently? I asked my allergist a few weeks ago and he claims the "components required for the test are no longer available". Whatever that means. I took penicillin once after a dental procedure as a teenager and got a bad rash. I was told I was allergic, but after reading up on it I realize it could also be allergies to the dye in the pill and that one can outgrow the allergy after 2 years of not taking it. My LLMD wanted to start me on PCN or Amoxi. I really want to give it a try because it is so much cheaper than Zith and my insurance won't cover Levaquin or IV's. It is really limiting my treatment options between allergies and insurance. I am allergic to Cefzil too which I understand rules out all cephlisporans.