Pimples after shaving armpits and inner thighs

Hi guys! This is getting unbearable. Every time I shave, I exfoliate before and after, i make sure it’s clean before shaving and I make sure it’s completely dry before putting on clothes. I still get these painful and red pimples in my inner thighs and armpits. There’s no “head” like a face pimple. The ones in my inner thighs bothers me the most because it hurts to walk. It’s right where my underwear sits.

Is it my razor? Should I apply something after? I do put shaving cream before btw. Should I try hair removal cream, waxing or an epilator? Please help I have a huge pimple right now and it hurts so much! Update: It just popped. There was white pus and then bled a little bit