Disinfection with iodophor or alcohol is good, there is no strict comparison, both are better disinfection liquid, just to be divided into situations and use, as follows: 1, alcohol: If the local grease is more, the skin wound is basically close to healing, the use of alcohol disinfection is a better way. Because itself can also be degreased, after local disinfection, the skin surface will feel better adaptation. But alcohol is more irritating, if the skin of trauma is not completely healed, after disinfection, it will directly enter into the wound, which will induce severe pain and irritation. 2. iodophor: If the trauma is not completely healed, the skin surface should be disinfected with iodophor as much as possible, and the surrounding area can be wiped with alcohol appropriately, alcohol should not enter into the wound, in principle, alcohol is not suitable for trauma with incomplete skin. These specific operations should still go to trauma surgery or emergency surgery to be done by doctors, it is not recommended to carry out by yourself, because the healing of the trauma cannot be well observed.