Povidone Iodine is very cheap, a few dollars can buy a 500 ml bottle of povidone iodine. The purpose of povidone iodine is to disinfect the surface of the body, such as a wound on the surface of the body or the need for surgical treatment, will be able to kill the bacteria on the surface of the body, which can play a disinfecting role. It destroys the cell walls of the bacteria, so that the bacteria cannot survive under the action of iodophor, and can keep a broken wound or skin relatively sterile, effectively avoiding bacterial cross-infection. At present, there are three other Aner iodine, all containing iodine disinfectant, disinfection effect is also very good, is a good value, safe, reliable and effective disinfectant, and very easy to buy on the market.