A boil that becomes smaller and does not burst is an abscess that absorbs. Most boils can rupture on their own, fall off, and heal by self-absorption as the pus drains away. A boil is an acute bacterial purulent inflammation of the hair follicle and surrounding tissues. Most are Staphylococcus aureus infections. Boils involve only a single hair follicle and surrounding tissues and are associated with poor drainage of secretions and other causes. Staphylococcus aureus produces plasma coagulase, which allows the conversion of fibrinogen to fibrin. It is usually treated with medications such as mupirocin ointment applied. Antibiotic medications such as amoxicillin and cefaclor can also be taken. If the boils are more severe and join into pieces as carbuncles, surgical incision and drainage is performed if necessary. With effective anti-infective treatment, the inflammation in the boil may gradually subside on its own, causing the boil to “shrink”. If the condition of the boil worsens, it is necessary to consult a doctor and follow medical advice.