First of all...curb the sweaty armpits problem first. Me too..also have this embarrassing problem before
, but no worries..it can be curbed.
Fiisrtly, have baths as frequent as possible. If not, just wash up your armpit area, as what I did previously. When at home, the moment you feel sweat over there, just go have an "armpit bath" (wash only your armpit area with soap/foam bath). Apply powder after that to keep the area dry.
Have tried using anti-persirants before..however, they dun seem to work as they dry up very quickly and left some powderish stuff on the armpits which makes mi feel sticky under there.
Secondly, when you go out, bring a small towel and talcum powder. When you go to the ladies, make it a bit damp with water and wipe your armpits with it. After that apply the powder. You will feel fresher as well.
Thirdly, avoid wearing clothes that will show sweat stains. It means avoiding certain colours and materials. The best is to wear sleeveless, make the area more airy so that sweat dries up more easily. Alternatively, avoid clothes with thick material.
However, I have heard that anti-perspirants may cause breasts cancers..dunno if it is true or not.
Anyway, hope what I suggest will be of help to you.