Abrasions are injuries in which the skin surface is abraded by a rough object, most commonly on the palms of the hands, elbows, knees, and lower legs. After the abrasion, the epidermis is seen to be broken and the wound surface appears pale with 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 does not leave scars. However, if the wound is complicated by infection, the wound surface will form a thick layer of black crust, and the surrounding skin will be red, swollen, hot and painful, and even the wound will become pus, which will bring great pain to the patient. Skin abrasions are common acute wounds in surgery and emergency departments, and as people’s quality of life improves, patients’ requirements for wound healing and comfort increase accordingly. For women, children and bedridden patients and patients with wounds located in joints, face and other parts of the body, as well as patients with higher requirements for wound healing, hydrocolloid dressing or hydrocolloid dressing combined with alginate dressing can be used according to wound characteristics and patient conditions. It shortens the healing time and improves the healing quality, while enhancing the efficiency of care. Skin abrasions are abrasions of the skin’s epidermis caused by external forces. Skin abrasions are a common injury, accounting for about half of the patients treated with outpatient dressing changes. Most of the abrasions are on the knees, shoulders, elbows and palms, cheeks, etc., and the trauma varies in size. Skin abrasion patients to the hospital should do the following tests: medical history clinical manifestations: the patient has a clear history of trauma, the body has a definite skin abrasions. Physical examination: the patient has definite skin abrasions, as well as the site of injury, the size, and the degree of damage to the injury site. Routine blood tests: In patients with skin abrasions, there are generally no significant changes in routine blood tests. Treatment of skin abrasions with exposure therapy results in less exudate on the wound surface, easy healing of the crust as soon as possible, and a very low incidence of infection. The method is simple, practical and effective, and is worth advocating. If the abrasion site is shallow, then only red salve can be applied. Skin abrasions are the main cause of bacterial infections, which are acute systemic infections caused by pathogenic or conditionally pathogenic bacteria that invade the blood circulation to grow and multiply, producing toxins and other metabolites. The following is how to examine bacterial infections caused by skin abrasions: Viral infections: infectious diseases caused by viruses that can reproduce parasitically in the human body and cause disease. The main manifestations are fever, headache, general malaise and other symptoms of systemic toxicity and local symptoms caused by inflammatory damage due to viral host and invasion of tissues and organs. Fungal infections: Diseases caused by fungal infections are called fungal diseases. Candidiasis and dermatophytosis, which have the highest incidence, are caused by fungi from the normal flora of the human body. Infections can be distinguished as: surface infection, skin infection, subcutaneous tissue infection, deep infection and conditional infection.