I finally found out what that is. Tonight, I was scratching my palm. It itched like a mofo! A blister appeared and it popped, the fluid was clear and the itching became less intense. I looked up my symptoms and it is dead on for bullous pemphigoid. I've never had it before, but from what I can find, it can be a reaction to penicillin. I'm currently on azithromycin and nearly done. Have any of you had this?