Bloody pus bumps on my ...whats wrong with me?? :'(?

Since I've been having with a guy I met, my always starts itching. And there's these huge pus blood filled bumps on my , even on the inside of the lip. When I pop it, I squeeze the stuff out and after a while, I feel like an insect is crawling on my and going inside. And it starts tingling and itching me. Then when I check, there's more eruptions but worse than before. And as much as I clean, my keeps stinkin, even the insides stink badly. What could possibly be wrong with me??? If somethings wrong who should I see??? I stopped doing him last month by the way...