Scar paste needs to be used after the wound healing, once a day, each time the time of dressing for 12 hours ~ 24 hours, need to be continuously applied for 3 ~ 6 months, the specific time of dressing varies according to the condition, the patient’s use of the effect there are individual differences. Scar paste can be used to prevent scar proliferation, used after the wound healing, the earlier the use of the therapeutic effect is better. At first, the duration of the patch can be slightly shortened, to be adapted to the local skin, the duration of the patch is gradually extended to 12 hours ~ 24 hours, once a day, the number of days of the patch is related to the severity of the disease, generally need to be continuous dressing for 1 ~ 4 months. There are certain contraindications to the use of scar patches, such as wounds are not healed can not be used, accompanied by serious infections can not be used, allergic to the substance can not be used, there are serious diabetes or cardiac and pulmonary diseases and serious hypertension patients can not be used. The use of scar paste has a large individual differences, it is recommended that patients seek medical attention in a timely manner, under the guidance of the doctor to standardize the use, so as not to delay the condition.