Hi Anne, Co-incidence. Just the other day my friend happened to mention a rash from Sinemet. I'm don't remember *exactly* all the places he had it (and gets it from time to time), but under the arms was one that I do remember. If you like I'll ask him about it on the week-end when I see him. Ciao, Helen Spence ([log in to unmask] BTW, you mentioned "a patient" of yours and I hope you don't mind my curiosity but I wondered if you're her PD Dr.?