Since 1 week tailbone was scratchy, after rigourous scratching started bleeding and pain started in 2 days. was cleaning with Dettol warm water. but 3 days ago pain was too much and cyst was red with surrounding area getting hard, pus then started coming with blood. been 4 days getting bleeding and pus, have to clean with warm water often, had 4 days Erythromycin 250 2 times with pan 40 and dolo. but little bleeding and pus is going and coming back, which doctor shall I consult.