Lip round or oval erythematous mucosal lesions preferably occur on the lower lip lip red, round or oval erythematous, slightly depressed in the center, slightly elevated with dark red edges, and white radiating patterns around the lesion. The lip lesions often go beyond the red edge of the lip and involve the skin, making the mucosal skin boundary blurred. There is hyperpigmentation or hypopigmentation around the lesion area. The skin lesions are usually found on the head and face and are characterized by scaling, capillary dilation, follicular keratin plugs, hyperpigmentation and/or hypopigmentation and scar formation. Diet 1. Fresh fruits and vegetables are recommended. 2.It is advisable to eat meat, eggs, fish, dairy, beans and other foods rich in protein. 3. Calcium-containing foods and a low-sugar diet are recommended. (1) fruits: fruits rich in potassium and vitamins, and the most common fruits, are good for the body. (2) eggs: rich in protein, improve body energy fish, dairy, beans and other protein-rich foods can be chosen (3) milk: prevent osteoporosis eat more calcium-containing foods and a low-sugar diet. Milk one bag per day Avoid eating diet 1, avoid eating greasy, spicy, rough and stimulating food. 2, avoid eating raw, cold and unclean food and drinks, avoid overeating, quit smoking and forbid drinking coffee. 3, avoid eating food with enhanced photosensitivity effect. (1) Dog meat: warm food and certain food dyes and tobacco can potentially induce lupus erythematosus Do not eat or consume less. (2) Royal jelly: food containing more estrogen Estrogen is one of the important factors triggering the development of SLE patients. (3) Strawberry: food containing more oxalate to avoid causing urine crystallization, increasing urine protein and tubular type in lupus nephritis and causing kidney damage. Placenta, umbilical cord, and female contraceptive drugs should be avoided.