An abscess that appears to ulcerate on its own and ooze out pus should be judged on a case-by-case basis. If the affected area is seriously infected, the pus accumulates more, thus leading to the local situation of excessive pressure, due to the thin skin at the abscess, the excessive pressure makes the abscess ulcerated. Therefore, this situation leads to abscess ulceration, should promptly go to the hospital for debridement, pus drainage, regular dressing change treatment, and take amoxicillin, cefaclor and other antibiotic treatment. Some relatively small abscesses, such as folliculitis abscess rupture, purulent secretion discharge, abscess infection will soon subside. If the abscess breaks down on its own, it may cause further infection, so you should go to the hospital in time and follow the doctor’s instructions.