The correct use of 75% alcohol disinfectant includes pouring method, wiping method and spraying method. 1. Pouring method: you can take 75% medical alcohol and apply it directly to the skin or the surface of the object to disinfect, but it may not be able to disinfect when the dosage is small. 2. Wiping method: You can use sterile cotton swabs or cotton balls to soak in 75% alcohol, and then use the cotton swabs or cotton balls to disinfect the skin or wipe the surface of the object to disinfect. 3. Spraying or misting method: You can fill a spray bottle with 75% ethanol disinfectant and use a press suitable for on-the-go disinfection. 75% alcohol can be used to disinfect instruments, objects, skin, wounds, etc. At the same time, it has a certain degree of irritation, can only be used externally, and should not be used on sensitive areas such as the eyes.