Since last december i ahve been getting boils, one after the other, in different parts of my body, some of them get so big that i hv o go to the hospital for them to extract the pus from it. now im on my 11th boil, of which the last 3 were on my buttocks... what to do? this has never happened to me in my life. should i take a blood test too? should i see an obs & gyn or a dermo?