The etiology of erythema multiforme has not been fully understood to date, but it is generally considered to be a skin disease caused by a metabolic reaction. In recent years, the relationship between the disease and herpes simplex virus has attracted considerable attention. It has been pointed out that more than 30% of patients with erythema multiforme are caused by herpes virus, and this has been confirmed by the test that intradermal injection with herpes simplex virus antigen can cause the development of the disease. During the onset of the disease, there are usually no obvious systemic symptoms, and the disease is self-limiting, and the lesions are expected to subside after about 2-4 weeks, but often recur. The disease can be classified into the wind-cold, blood-stasis, blood-heat, and damp-heat types according to the principles of evidence-based treatment, and treatment is often effective. Tinea corporis occurs when the skin is infected by various dermatophytes (also known as fungi) and a ring-shaped rash appears, which itches unbearably and expands peripherally with small blisters, crusts, thickening and running water. If the disease affects the feet, it is called tinea pedis, commonly known as damp feet or athlete’s foot, and is characterized by unbearable itching, whitening, erosion, or thickening and peeling of the toes. Here are the types of foods that are suitable for patients with erythema multiforme-like skin rash. 1, it is advisable to eat fresh fruits and vegetables. Fruits rich in potassium and vitamins, and the most common fruits, are good for the body. It is advisable to eat them between meals. 2, it is advisable to eat meat, eggs, fish, dairy, beans and other protein-rich food, can improve the body’s energy. 3, it is advisable to eat foods containing calcium and a low-sugar diet. Drinking more milk can play a role in preventing osteoporosis. It is recommended to drink one bag of milk daily.