hyperhidrosis
"Typical hyperhidrosis story, here. All of my white undershirts have nasty looking yellow/brown stains on the pits and a lot of colored shirts have white stains from sweating so much that over the counter deodorant had stained the pits. I'll admit, I didn't have a ton of hope for drysol, as no deodorant has ever worked for me. This stuff works. I'm amazed. The only problem is that it is excruciatingly itchy. I thought this would only be for the first couple of nights, but nope. Every single night it itches like hell for about 30 minutes. Even before I apply it, there's a slight itch. Occasionally the itching is accompanied by a slight burning sensation, but not always. The stuff works wonders and I'd rate it 10/10 if it wasn't for the itch."