If the patient has inflammation of the hair follicles, the appropriate use of iodophor for disinfection has a corresponding therapeutic effect. However, if the patient does not have obvious inflammation, frequent external rubbing with iodophor may cause damage to the hair follicles, because iodophor itself is an oxidizing agent, and this oxidizing agent, if used for a long time, may cause certain damage to the epidermis and the hair follicles, especially because the long-term use of oxidizing agents may easily induce secondary infections, such as secondary fungal infections, which may cause a decrease in the barrier function of the epidermis and the formation of inflammatory manifestations. At the same time, inflammatory manifestations are formed. If the patient has hair follicle damage, it is necessary to stop inappropriate use and to treat accordingly.