A boil is a pus-filled infection of the hair follicles and sebaceous glands and surrounding tissues that occurs when the skin comes into contact with impurities such as dirt and bacteria, and in some cases it is more serious and even life-threatening. Boils are usually caused by Staphylococcus aureus bacteria invading the skin and can develop on all parts of the body, but the most serious areas are in the triangle around the nose and mouth. Boils should be treated promptly, and when the condition is mild and there are no systemic abnormalities, topical treatment is the mainstay. In the early stages of the disease, tincture of iodine can be used to clean the affected area locally, and the boil should not be squeezed or punctured by hand to avoid spreading the infection. At this point, gauze moistened with antibiotic-containing saline should also be applied consistently to the affected area to promote softening of the boil. If the boil forms an abscess, it can be allowed to drain naturally or made to drain by local incision. And you should continue to apply antibiotic saline-soaked gauze to the affected area until it is healed. If the boil occurs in the danger triangle or if the patient has more severe inflammation and systemic symptoms, oral antibiotic antimicrobials should be administered. Since boils can be triggered by a variety of causes, pus from the boil site should first be taken for a drug sensitivity test to determine the effective drug. Boils can be particularly severe and can be fatal, so patients should be treated aggressively, preferably with bed rest, a diet high in nutrients during the attack, and fluids. Boils can be treated locally with antibiotics and wet compresses, or systemically with oral antimicrobials and, in severe cases, with other treatments such as fluids.