How can you stop sweating profusely?

Yes. This is called hyperhidrosis which is excessive perspiration. There are many treatments including deodorants, surgery and botox.
Many options. There is a condition called hyperhidrosis which is excessive persperation. This can happen in the armpits, hands or feet. There are different options for treatment from prescription deodorants to surgery. In my practice, I use Botox which can reduce sweating in the armpits. This is a temporary treatment that needs to be repeated.