After skin allergies are healed, scarring is possible, which is related to individual physique, especially for people prone to scarring; the likelihood of scarring is very high. If scars do appear, it is recommended to apply some scar-removal ointments. If the effect of the topical scar ointment is not satisfactory, you can also visit the dermatology department of a local reputable hospital for treatments such as laser or other physical therapy methods. It is important to avoid direct sunlight and prevent injuries in daily life.