hyperhidrosis
"Well I've had excessive sweating for years. I had gone to my doctor and was prescribed Drysol and within twenty minutes of applying it my skin broke into an extremely painful,  bumpy rash. I followed all the instructions, no shaving before putting it on, just a thin layer not to rub it in etc.  I'm sure the product works, I just have extremely sensitive skin so I'll just need to continue looking for a product or medical procedure that works."