I tried to get "Dry Sol" per-recommendations from this board, but the pharmacy people said I needed a prescription first. my question: why do I need a prescription for this?? how silly..so now I have to make an appt. with a dermatologist (?) and simply tell them what I already know..what a waste of time! Does anybody know how to stop really persistent and problematic underarm sweat w/o 'dry sol,' or is this the really only good product??