How to reduce sweating?

I know sweating is normal and healthy but I hate when I sweat a lot for no reason! It's worse now because it's summertime and I burst into sweat fast. Also it effects my acne, rendering it worse. There are times when I'm in a cool room and I sweat quite a bit. I'm a guy so please don't advise me to use make up or foundation because that's an automatic no for me. Baby powder is drying even thought I use moisturizer. Is there anyway I can do to reduce the sweating on my face?