For at least 6 months I have had redness/soreness around my lips which swell and bleed at times. Lately my lips (and above/below them) have developed pustules that drain and harden. I'm currently seeing a dermatologist who seems stumped. A round of Amoxicillin 500 mg was prescribed first, then penicillin (thinking it might be a yeast infection due to the pustules) and then another round of the same antibiotics. He also did 2 or 4 cultures, but nothing has helped. I was given some ointment to help the lip pain; any liquids that touch the lip area hurts as does stretching my mouth (smiling, yawning, brushing teeth, etc.) He's mentioned staff infection twice but has not tested for it. Please help in any way you can. What other kind of Dr. would you recommend?