Pus bags are mainly caused by skin or local tissue infections and should not usually be lanced on their own when they appear. Pus bags are generally caused by the collection of inflammatory secretions, the appearance of pus bags are not recommended to puncture the pus bags, so as not to lead to the outflow of pus, the surrounding skin, resulting in the worsening of the symptoms of the infection, the need for symptomatic treatment according to the severity of the pus bags. If the pus is small, you can use cefixime, amoxicillin, povidone iodine and other drugs under the guidance of the doctor, can relieve the symptoms of pus. If the pus bag is larger, there are more pus collection, you can promptly seek medical treatment for fine needle puncture drainage, and also need to use antibiotic drugs treatment, such as ofloxacin, etc., can avoid infection. The appearance of pus is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for treatment, do not treat yourself. Usually need to pay attention to do a good job of skin cleaning, keep the skin dry.