The causes of non-healing wounds that always produce pus may be caused by bacterial infection, improper wound care, lack of trace elements and certain diseases, and there is more than one reason why some patients have non-healing wounds that always produce pus. It is necessary to treat according to the cause and severity of the disease, but the recovery effect and speed also varies from person to person. 1, effective control of infection: for example, exotoxin and endotoxin produced by bacteria can directly damage the tissue, resulting in local inflammation, manifested as redness, swelling, pain, etc., bacterial persistent infection can lead to suppuration, appearing wound does not heal always pus. The infection needs to be controlled as soon as possible to reduce the number of bacteria in the wound. You can first swab the pus with sterile cotton swabs, then wipe the wound surface with iodine volts, wipe 3 times a day, and try to keep the wound clean and dry; 2. Incision and drainage: patients with wound dressings, patients with drainage tubes or central venous catheters, etc., if they fail to disinfect the skin around the wound on time, there will also be a wound that does not heal and always produces pus. Wounds with serious infection or larger area can ask a doctor to deal with, generally need to remove necrotic tissue first to avoid aggravation of wound infection, and then use isotonic saline or furacilin and other medicinal solutions, poured on gauze strips and put on the wound to drain the pus and promote wound healing; 3, drug treatment: wounds do not heal always pus, may also be associated with less vitamin C, vitamin A, vitamin B, vitamin K and other nutrients Related. It should be identified as early as possible and targeted to supplement the nutritional elements. Vitamin C can promote the formation of collagen, which in turn promotes wound healing. Vitamin A, B, K, etc. also have a role in the wound healing process; 4, probe: for example, patients with Mycobacterium tuberculosis infection may have pus from the sinus tract, manifesting as a wound that does not heal old pus, should promptly seek medical attention for debridement and probe, and further identify the cause, to investigate whether there is a foreign body left behind in the wound, or the wound does not heal and pus due to inadequate drainage, and after clarifying the cause Anti-tuberculosis treatment, such as isoniazid, rifampin and other drugs as prescribed by the doctor, and surgery if necessary, should be carried out. In addition to the above-mentioned pathogenic factors, other factors affecting wound healing include the blood supply to the wound site. Avoid prolonged pressure or immobilization of the wound site. During wound healing, avoid getting cold, should increase nutrition, eat more fresh vegetables and fruits, avoid spicy and stimulating foods, do not smoke and drink. Elderly people and patients with chronic diseases may have longer healing time and should pay attention to control the underlying diseases and improve immunity. In addition, wounds in the joint area should avoid bumping or pulling, etc.