ive been on propecia for almost 4 months and rogaine5% nizoral for about months. This past week ive been itching very badly not just my head but my entire body. i dont know why but if a start to sweat my itching really flares up and i get a rash everywhere then it dissapears and im fine. is it possible to have an allergic reaction at the 4 month mark on propecia? im worried because if i stop ill have wasted 4 months, and im starting to see some very promising results. has anyone experienced this rash thing while on propecia?