Burn wounds that take more than 3 weeks to heal are bound to leave different degrees of scarring, which varies greatly depending on the individual. The prevention and treatment of scarring requires a combination of methods: 1, the first thing is to treat the wound correctly, you can apply anti-scarring drugs, including cumene ointment, etc. The application must be combined with massage techniques, massage therapy can soften hard scars and have the effect of tissue expansion, which can improve scars that are raised or have a tendency to contract. 2.Use silicone products, such as scar paste, scar enemy, etc. to apply the scar externally. 3. Pay attention to less spicy food in diet and avoid strong sunlight exposure. Vitamin E can be applied appropriately, which can penetrate into the inner skin and exert its emollient effect, and at the same time, vitamin E can also maintain skin elasticity. 4. For the itchy scar area, 75% alcohol can be applied appropriately.