If the red marks don’t go away after the scabs fall off, there is a risk of scarring. After the scabs fall off, the red marks will gradually fade away in about 3 to 4 weeks. However, if the red mark does not go away and appears to be convex outward, hyperplastic scar may be formed, at this time can be used externally to inhibit scar proliferation and improve the appearance of the later stage of the compound heparin sodium urea ointment, cumeneoside cream, silicone gel and other drugs. In the early stage of scab loss, if there is local redness and swelling, it is considered that there is inflammation, and topical antibiotics should be used in time to control the inflammation. If the inflammation is not effectively controlled, the long-term inflammatory stimulation of the lesion will aggravate scar proliferation. After the scab falls off, we should pay attention to sun protection, do not direct sunlight, diet should be light, do not eat spicy stimulation. All of the above drugs should be used in accordance with medical advice, it is recommended to go to a regular medical institution when the above situation occurs, under the guidance of the doctor standardized treatment.