It is usually not necessary to disinfect yourself with iodophor after the injection. The doctor has already disinfected the local skin before the injection, there is no need to disinfect. If there is redness, swelling and inflammation at the injection site after the injection, you can disinfect the area with iodophor on your own, or go to the hospital in time if the infection is more serious. After the injection, the local skin should be kept clean and dry, do not touch water within 24 hours, do not touch the injection site with your hands, so as not to lead to inflammation of the eye of the needle.