In general, the disinfectant solution that should not be used after facial abrasion includes red potion, purple potion, etc. In addition, some patients who are allergic to iodophor should not use iodophor. 1. red potion: red potion is a 2% aqueous solution of mercury bromide, which can disinfect and sterilize, but because of the mercury content is a slightly toxic substance, which can cause some damage to the human body, and should not be used. 2. Purple potion: there is a purple component of methyl violet, showing purple, can be antibacterial disinfection, but there is no sterilization function, and may lead to hyperpigmentation, affecting the facial aesthetics, should not be used. 3. Povidone-iodine: Povidone-iodine can directly act on the mucous membranes to disinfect and sterilize, which is mainly a complex of iodine. Therefore, it is forbidden for those who are allergic to iodine, and should not be used by hyperthyroid patients. It is recommended that patients seek medical treatment in a timely manner after abrasion, so as not to make the face scarred by improper self-treatment.