Scalding is the main cause of scar formation. It is often seen that some patients go to the hospital for emergency treatment because of burns. It is a headache to leave scars after scalding. Scar repair is also an important part of modern burn treatment. Timely and correct scar rehabilitation treatment can obviously improve the quality of burn healing. 1, pay attention to skin cleanliness and hygiene. When the burn wound has just healed, there are still a small amount of secretions and scabs, so bacteria are easy to multiply quickly. In addition, the epidermis is thin and tender, the structure and function are not perfect, and it is easy to be infected and ulcerated. In the meantime, we can use neutral detergent for cleaning, and then use anti-scar drugs and other treatments after cleaning. 2. Avoid excessive friction and excessive activity. Due to the imperfect structure and function of scar epidermis, the epidermis is more vulnerable to injury, and some improper treatment may aggravate the injury. When applying anti-scar drugs, it is not advisable to massage excessively or for a long time, which will separate the epidermis from the fiberboard layer to form blisters or blood blisters, and excessive joint activity will also lead to the loosening and separation of the epidermis and blisters. 3. Under the guidance of specialists, take comprehensive measures to control scar hyperplasia and prevent contracture. So far, there is no specific method to completely prevent scar hyperplasia after burn, and comprehensive treatment is still the main method of scar prevention and treatment. 4, blisters should be timely drainage, avoid infection to form ulcers. Due to various stimuli, the new epidermis is easy to relax and form blisters. If blisters are not treated promptly and correctly, they are usually infected and form ulcers. After the blister appears, the skin can be disinfected with complex iodine, and the blister can be cut off with sterile scissors, resulting in water accumulation. Generally, anti-scar treatment should be implemented after the blisters subside and the ulcers heal. 5. After lower limb burns, it is not advisable to go to the ground too early. Because the scar epidermis is fragile, the structure and function of its underlying blood vessels are not perfect, and it cannot withstand the internal pressure against gravity. When standing, the wound surface of lower limbs will turn purple or even bleed because of capillary rupture, which will aggravate scar hyperplasia. Generally, it is more appropriate to go to the ground in about 3 months. It is best to use a pressure sleeve to protect before going to the ground, which can reduce scar congestion. 6, early prevention, perseverance. The formation process of burn scar can be roughly divided into proliferative phase, stable phase and regression phase. The proliferation period lasts from 3 months to 2 years, and most of them are about half a year. However, due to various reasons such as ulcer, pain, impatience or improper methods, some patients often fail to adhere to scar rehabilitation treatment, resulting in scar hyperplasia and contracture. 7. Correctly grasp the opportunity of plastic surgery for scald scar treatment to prevent disability. Scar contracture of functional parts, such as hand scar, eye scar and jaw and neck scar, should be operated as soon as possible after the scar is stable, especially children, should be treated as soon as possible, and plastic surgery can be carried out in advance. Otherwise, it will cause abnormal development of joints and bones, shorten blood vessels and nerves, and lead to disability. The above contents are about some precautions for preventing scald scars, and I hope it will be helpful for everyone to deal with scald scars.