I get so many pimples from ice hockey.?

I don't get pimples unless i'm playing hockey. So far this summer i havent had any, well i had some but not alot, now ho9ckeys starting and my chin and cheeks fill with acne, what can i do? Do those acne pills help with it because ill go to a dermatoligist and ask for it. I'm 15 going into high school and i don't want ot be all pimply the whokle year...also, any ideas to put on my chinstrap?