I sweat so much under my arms whether its hot or cold. I have used all of theswe
Secret clinical protection
Degree clinical protection
Every deoterant on the shelf even boys
What to do now..I cant deal with it no more
Well, from what I think it may be because of what shirt/dress you wear. If you try wearing some loose shirts/sweaters and see a difference you know waht it was. Also, after you shower make sure to dry your underarms really well, and when you put on deoderant, if its a roll-on, make sure it dries up completly. So it may sound like either you put a too tight shirt or you air doesnt flow by enough.
I have the same problem. I used all the deordorants in the world. My aunt had the same problem and told me to take a white potato and rub that under you arms at night and cut off the part that you used already and repeat it and eventually your underarms will stop sweating. She said it absorbs all the moisture. I still haven't tried it but I am and she said it worked for her.