Iodine and hydrogen peroxide are both antiseptic solutions, with the biggest difference being the different areas of application. Iodine because of the obvious irritation, can not be used for disinfection of broken skin, while hydrogen peroxide also has irritation, the use of which will also cause pain, but in the fresh wounds as well as old wounds infected, suppurative disinfection at the same time can also play a very good role in hemostasis, so it can be used in the skin and ulcerated wounds, especially wounds are contaminated with anaerobic infections, the application of hydrogen peroxide effect It is better to apply hydrogen peroxide. In addition, iodine is powerful in sterilization, capable of killing bacteria, fungi, viruses, amoebae, etc. So in addition to wound disinfection, iodine can also be used for wound disinfection. Therefore, in addition to wound disinfection, it can also be used to treat many bacterial, fungal and viral skin diseases, such as bacterial onychomycosis, fungal infections, onychomycosis viral skin disease, molluscum contagiosum, as well as folliculitis, etc., and hydrogen peroxide does not have this therapeutic effect. In addition, iodine generally can not be used on a large area, otherwise there is the possibility of triggering iodine poisoning, while hydrogen peroxide will not.