After burn injury, if the trauma is deep or the early treatment of the trauma is wrong, it is easy to form scars, which often cause burden to the patient and affect the function and appearance, so the prevention of scars after burns is more important. First of all, it is important to choose the correct treatment for the post-burn trauma, and it is best to consult a burn doctor at a regular hospital to avoid affecting the healing of the trauma by self-application of medication or treatment by a non-burn specialist. Generally, if the wound heals within two weeks after the injury, there will be no scar growth at a later stage. Otherwise, if the wound heals in more than two weeks, there may be scar growth. Scar prevention should start after the wound is healed. The healed wound can be treated with topical application of silicone gel type drugs to inhibit scar growth, combined with the use of silicone gel type dressing and external compression with elastic bandage or elastic sleeve, and the treatment time should last about one year. Functional areas should be strengthened with exercises to promote scar softening. More serious scars need to be treated surgically at a later stage.