I've self-diagnosed myself with hyperhidrosis. The rest of my body can be freezing cold in my AC controlled office but my armpits will sweat like it's 90 degrees, inevitably leaving unsightly sweat stains in lighter colored shirts. It's normally not a problem since I mostly wear darker colors where it's less noticeable, but it really limits me from expanding my style and wearing brighter colors comfortably. I've tried extra strength antiperspirant. This helps to some degree but I always end up sweating through it. I've even tried using a hair dryer on my pits after applying it to form a seal, and this limits the severity of wetness though I still sweat through it noticeably. Any tips?