Necrotizing fasciitis of the neck is a critical surgical emergency, and its treatment principle is early diagnosis and early debridement. Therapeutic measures mainly include systemic medication and local surgical treatment. Patients also need to strengthen the nutritional therapy to improve the immunity of the body. Most patients can recover after 2~4 weeks of active treatment. First, drug treatment 1, antibiotics: necrotizing fasciitis is a mixed infection of many kinds of bacteria, systemic toxic symptoms appear early, the condition is serious, should be combined with the application of antibiotics. The medication program is cefuroxime + metronidazole + levofloxacin, and antibiotics should be adjusted according to the results of bacterial culture and drug sensitivity.2. Intravenous volume expansion: commonly used low molecular dextrose, balancing fluids, etc., to supplement the blood volume and the necessary water, sodium and other components through intravenous infusion to prevent or treat the condition triggered by loss of body fluids in the operation.3. Correcting the disorders of electrolyte and acid-base balance: replenish potassium chloride, concentrated sodium, sodium bicarbonate Correct electrolyte and acid-base balance disorders by replenishing fluids, etc. 4. Supplementary nutrition and correcting hypoproteinemia: intermittent transfusion of fresh plasma, albumin, concentrated red blood cells, etc. to correct anemia and hypoproteinemia. 5. Immunoglobulin: applicable to patients in the acute stage, commonly used in intravenous drip drug delivery to effectively improve the immune function of the patient’s organism. Second, surgical treatment 1, debridement and drainage: neck abscess debridement surgery generally take the neck transverse incision surgery, debridement surgery wound to reach the edge of the lesion blunt separation to reach the pus cavity in the operation to see more than one abscess gap pus amount of up to 50 ~ 200 ml. Fully separate the various interstitial spaces, so that the various interstitial spaces of the lesion interconnected to completely remove pus and necrotic tissue until the edge of the skin appeared fresh blood in the operation of repeated iodine volts, Negative pressure closed drainage: Negative pressure closed drainage can be continuous, uniform negative pressure attraction, not due to high local pressure and tissue ischemia can be flushed into the potential cavity to achieve local antibacterial, bacteriostatic or use negative pressure siphon effect. Suction out necrotic tissue, pus and toxins, control infection and reduce the number of surgical debridement. It can also accelerate the blood circulation in the wound area, promote the growth of granulation tissue and the formation of neovascular network in the wound, and promote wound healing or reduce the size of the wound. The wound is closed with semi-permeable biofilm, which separates the wound from the outside world and constitutes a barrier against bacterial invasion, resulting in a low incidence of infection and a high cure rate. At the same time, negative pressure closed drainage is more efficient, eliminating the pain of repeated drug changes, and can significantly shorten the patient’s hospitalization time; 3, implantation surgery: when the skin defect is large and difficult to self-healing, it should wait for the inflammation to subside, and then carry out implantation on a selective basis. Attention should be paid to the protection of healthy fascia during the surgical operation, which is prone to spread infection after injury. Metronidazole local wet compresses can delay skin growth, should not be applied for a long time. Nutritional therapy for the systemic condition is good, the use of enteral nutrition, into the high-calorie, high-protein, vitamin-rich diet. For those with poor general condition and loss of appetite, enteral and parenteral nutritional support should be used. Fourth, other treatment hyperbaric oxygen therapy: surgical infections combined with anaerobic mixed infections are increasing, hyperbaric oxygen adjuvant therapy can improve local tissue hypoxia, inhibit anaerobic bacterial growth, and can enhance phagocytosis, especially for patients with no improvement in the treatment and systemic risk factors of the severe disease.