Although both Amyl iodine and povidone iodine have antibacterial and disinfectant properties, there are differences. Iodophor is an indeterminate conjugate of monomorphic iodine and polyvinylpyrrolidone. Iodophor has a relatively low concentration and is light brown in color, and is mainly used for disinfection of the skin, and it does not need to be deiodinated after use. Iodophor is relatively low in toxicity, has no obvious stimulation of mucous membranes, and is not corrosive to disinfected items. Povidone iodine has a relatively broad-spectrum bactericidal effect, and is used in a wide range of clinical applications, and can be used as a bactericidal disinfectant, disinfection of the skin and mucous membranes, treatment of scalded wounds, treatment of trichomonas vaginitis, mycosis vaginalis and skin mycobacterial infections, and so on. It can also be used to disinfect the skin before surgery and to disinfect the skin at various injection sites. Amyl iodine is called Amyl iodine skin disinfectant, the main ingredients include iodine, chlorhexidine acetate, ethanol, mainly used for injections, blood collection, as well as surgical sites and surgical dressing disinfection. It can also be used to disinfect oral mucous membranes and to disinfect hand washing before surgery, without dilution, and is relatively easy to use. It can also be used for wound dressing and disinfection of thermometer, bottle caps and other surfaces. Special attention should be paid to the fact that Amyl iodine has a certain degree of irritation to mucous membranes and wounds. Besides, it contains alcohol, which is also irritating to mucous membranes and wounds.