I hv a recurring warm bumps on my butt for a month nw accompanied with fever. New bump appears when old is cleared. It appeared on the same track vertically on my left bum. I hv recently delivered & I was diabetic during pregnancy. I also have fungal infection since pregnancy 6 months till nw & it got cleared somewhat excpt on the bum where tumor is appearing. This is stressing me a lot.. Pls suggest if this is serious or it has to be surgically removed or medicines fine