It does not matter if there is a little pus in the wound scab, it will not affect its healing, generally pay attention to disinfection, cleaning can be. The human body has the ability to self-repair, the wound diameter is small or shallow, only in the epidermis, good disinfection treatment can be self-healing. However, if the injury is extensive, deeper, has injured the subcutaneous tissue, or there is dirt stuck to the wound, it cannot be handled by itself, you need to go to the hospital to be cleaned by a doctor. The pus produced after the crusting of the affected area is formed in the process of inflammation of the body tissue, such as liquefaction and necrosis of white blood cells, bacteria and necrotic tissue fragments under the action of fibrinolytic enzymes. When the amount of pus is very small, it can be removed by the body itself by disinfection with iodophor wipe. If the amount produced has exceeded the range of its own removal, the pus should be promptly excised and drained and treated with anti-inflammatory treatment. Wound is the defect and destruction of human skin, mucous membrane and tissue caused by mechanical stimulation, physical or other external factors, including having lacerations, abrasions, cuts, etc. During the wound recovery period, pay attention to life care, a light and nutritious diet, easy to digest, and moderate exercise to avoid aggravating the damage to the affected area.