Unless there is a trauma or infection in the hand that requires normal disinfection treatment with iodophor, do not use iodophor to coat your hands frequently. Although iodophor has certain oxidizing properties, it is less irritating to the skin, but if you repeatedly use iodophor to apply your hands, it is easy to produce certain irritating effects on the skin and even cause allergies, and the skin coated with iodophor for a long time will have color changes or even peeling. In addition, although the iodine content contained in iodophor is relatively small, it will be partly absorbed by the body if it comes into contact with the skin for a long time. If the iodine intake is too much, it can affect the function of the thyroid gland and even cause the production of thyroid nodules, inducing some undesirable consequences.