The sores can be drained through medication or by picking them with a sterilized needle, and different treatments are used depending on the size of the sores. 1. Small sores: If the patient’s sores are small, they are usually treated by applying ointment, which can be used under the guidance of a physician, such as neomycin ointment, mupirocin ointment and other types of treatment, and the skin should be cleaned well before application. 2. Large sores: After disinfecting the skin, you can use a sterilized needle to puncture the edges of the sores to drain the pus, after which you can use a cotton ball to suck up the pus and then apply the ointment. Patients with sores should follow the doctor’s instructions to use medication, avoid spicy and stimulating food, keep the skin clean to avoid infection, and seek medical attention when abnormalities occur.