Pure alcohol also has the effect of disinfection, but the medical alcohol is generally the concentration of 75% alcohol, because alcohol if you use too high a concentration, not only can disinfection sterilization, but also easy to cause fat liquefaction at the wound, there is a greater irritation caused by severe pain at the wound. So when disinfecting with alcohol, try not to choose too high a concentration, 75% alcohol is best, and at the same time can be paired with iodophor, then the disinfection effect of iodophor is also more extensive, and the pain brought to the patient when touching the wound is lighter than other disinfection drugs. The possibility of scarring after recovery is lower, and the taste is weaker than alcohol, which cannot be used for disinfection of the eyes, nose or mucous membranes, while iodophor can be applied to all.