Scars from skin infections can be repaired with topical medications, topical closures, and laser treatments. 1. Topical drug treatment. In the early stage of scar formation and no obvious symptoms of infection, the timely use of some of the drugs that inhibit scar proliferation can significantly improve the appearance of scars in the later stages, such as cumulonimbus cream ointment, polysulfonic acid mucopolysaccharide cream and so on. 2. Localized closed treatment. For scars with obvious hyperplasia, appropriate amount of hormone drugs can be injected inside the scar tissue, which can inhibit the growth of scars and reduce the size of scars. The commonly used ones in the clinic are tretinoin injection and so on. 3. Laser therapy. The use of laser therapy instrument emits some high-intensity light and heat effect, directly on the scar tissue, and promote its collagen structure regeneration and rearrangement, so as to achieve the purpose of repairing scars. Due to the different size and location of scars, the treatment will also have some changes, the specific circumstances need to go to a regular hospital to ask a specialist doctor for an interview to determine, to avoid blind use of medication to avoid adverse consequences.