Abrasions are superficial abrasions of the skin. If the abrasion site is shallow, only red saline can be applied; if the abrasion wound is dirty or there is blood oozing, saline should be applied to clean the wound and then red or purple saline. Abrasions are injuries where the skin surface is abraded by rough objects, the most common being skin abrasions on the palms, elbows, knees, and calves. The abrasion is visible as a broken epidermis with a pale wound surface and many small bleeding spots and tissue fluid exudation. Because the dermis is rich in nerve endings, the injury is often very painful, but the regenerative ability of epidermal cells is very strong, if the wound is not infected, it heals quickly and can not leave scars. Skin abrasions are mostly caused by external forces, commonly in the palms of the hands, face knees and other parts, the following we will understand the causes of skin abrasions: 1, hand trauma: hands are the most commonly used in daily life and work to an organ, because the hands in most cases do not have much protection, and the need to constantly touch a variety of tools and objects, in trauma (such as a fall or impact), its reflexive support, support. support. 2, nasal trauma: the nose is protruding in the center of the face, prone to trauma caused by impact or fall. The size, degree and direction of the external force are different and the degree of injury varies, which can be manifested as soft tissue contusion, laceration, nasal bone fracture, septal fracture, cartilage dislocation, etc. 3.Auricular trauma: The auricle is susceptible to various contusions, cuts, lacerations, severed injuries and firearm injuries. Improper treatment can lead to chondromalacia, cartilage necrosis and auricular deformity. The auricle is susceptible to various contusions, cuts, lacerations, severed wounds and firearm injuries. After the abrasion, the first need to clean the wound, available light salt water, no conditions can also be used tap water, well water while scrubbing with a clean cotton ball, the mud and ash and other dirt washed away. Next, you need to disinfect, available iodine, alcohol cotton ball disinfection around the wound, along the edge of the wound outward wipe. Then you can apply a little red salve on the wound, which is antiseptic and less irritating. Finally, the wound can be dressed with sterile gauze or clean cloth, and small wounds can be left undressed. If the wound is to secrete, the wound surface should be cleaned in time for each cleaning. Also eat a reasonable diet, eat more vegetables and fruits, and do not eat spicy and irritating food.