Actually, it is quite embarrassing to write this in my blog because it concerns the guy's dignity. Hahaha. But a a lady who is sitting besides me (her name is Wanty) advised me to write this.
I think it is guys' common problem but just few speak out about this issue. Male's armpit sweats more than woman, and off course it causes problem when you can not deal with it. Roll on deodorant seems not so effective although it reduces the smell (I prove it, I've tried some brands). But how to dry the wet armpit, that's the question. So if you have advice, leave your comment here, hehehehe.