I'm currently have my fourth abscess under my left arm (armpit). I had three surgery already the doctors who did the test on the pus from the abscess say that it is mercer and that I am prone to getting them. I know it comes from cuts, such as shaving for example. But every since my first surgery, I'll wax my underarm (not constantly). When I went to my pediatrician recently, she said that the abscess is probably coming back because of my thick curly hair is growing back in.