The correct use of liquid dressings is to apply them to cover the wound after the wound has been cleaned and changed promptly. Liquid dressings act as a physical barrier by forming a protective layer on the surface of the wound. Mostly used for small wounds, abrasions, cuts and other superficial wounds and surrounding skin care. When used, it should be noted that the first disinfection, clean the wound, so that it is free of foreign bodies, moisture, and then apply liquid dressing to cover the wound, which can last about two days to change. When applying liquid dressing, it should be noted that it is not a substitute for medicines; it is forbidden to use on ulcerated and pus-filled areas; it is forbidden to use on eyes and mucous membranes around eyes; it is forbidden to use on large wounds, deep wounds, and eczema, bleeding, redness, itchiness and blotchy areas.