Boils usually mature and pus out in about 5-7 days, and can take up to one to two weeks to mature and pus out in larger boils, depending on the individual. A boil, also known as a “boils”, is an acute bacterial purulent inflammation of a single hair follicle and its surrounding tissue. The symptoms of a boil are an early reddening and warming of the skin, accompanied by pain and swelling. A white or yellowish-white pus head gradually forms within two to three days, and the head breaks down and pus comes out in about five to seven days, and the amount of time it takes for the boil to mature and discharge pus depends on the severity of the boil. After the boil has matured and pushed out, you can use 75% alcohol or povidone-iodine to disinfect the wound to avoid infection. For superficial boils, you can apply mupirocin ointment or fusidic acid ointment externally to help recovery. For more serious cases, penicillin, cefuroxime and other drugs can be used under doctor’s guidance, and anti-infective treatment can be given through the intravenous route. During the recovery period, attention should be paid to local hygiene and cleanliness, light diet, avoid eating spicy, greasy and other stimulating foods. When a boil matures and pus comes out of the boil and is mishandled, resulting in worsening pain, you should go to a medical institution as soon as possible for consultation and active treatment. Maintaining good hygiene in daily life, avoiding bacterial infections and improving one’s immunity can effectively prevent the occurrence of boils.