Treatment of local frostbite
(1)I degree frostbite wounds should be kept clean and dry, and they can be healed in a few days.
(2) After the second frostbite rewarming, clean the wound and surrounding skin with alcohol-free disinfectant such as L% bromogeramine solution, and then wrap it with dry gauze; Blisters should generally remain intact. Those with large blisters should be wrapped with dry gauze after sucking blister fluid, or exposed after applying chilblain cream. For example, exposure therapy after applying MEBO has a good clinical effect, which has the functions of rewarming, heat preservation and promoting wound healing. Some infected people first use antibacterial wet gauze, and then use frostbite cream, such as burn net and silver sulfadiazine, which has the functions of analgesia, anti-infection and promoting epithelial growth.
(3) How to use exposure therapy for third-degree and fourth-degree frostbite? Keep the wound clean and dry. Only when the dividing line of necrotic tissue is completely confirmed can necrotic tissue be removed or eliminated; Continue dressing change and skin grafting when necessary. Amputation (toe amputation) should be considered when the degree ⅳ frostbite or wet gangrene of the distal limb seriously affects the whole body. In addition, frostbite above degree III requires systemic treatment, such as: ① giving high-priced nutrition, including high calorie, high protein and high vitamins; ② Antistasis agent: low molecular dextran 500 ~ 1.
000n ~ TL/d； ③ Anticoagulant thrombolytic agent: heparin 1 ~ 2 mg/kg, added to 10% glucose solution or 100ml physiological saline every 6 hours 1 time.