Rusty iron, or iron nails, these objects are exposed to nature for a long time, and they contain a lot of viruses and bacteria. If you are scratched by such objects, you should pay special attention to cleaning and disinfection must be complete and thorough, first repeatedly wash the wound with water, and then repeatedly disinfect with disinfectant solutions such as hydrogen peroxide, salt water, iodophor, disinfection with iodophor no less than three times, such as deep wounds, should be injected with tetanus antitoxin injection to prevent the occurrence of tetanus.