Shaving during summer

Ok i have a problem with shaving my vagina during summer bc the hot weather makes me sweat like crazy, which in turn causes irritation and results in tiny pimples down there. I cant exactly go commando to prevent sweat from trapping and i dont want to grow a bush. How can i prevent the pimples?? Or even the irritation and red bumps? The same thing happens on my legs if i wear pants after shaving and sweat.