Dermatomyositis Gottron’s sign: It is a reddish-purple maculopapular rash on the skin of the metacarpophalangeal and proximal phalangeal joints, with a flattened top surface and a little desquamation, with skin atrophy and hypopigmentation after a long time. Dermatomyositis Gottron sign of dietary considerations: 1, milk, green beans, uncooked eggs, etc. can not be taken at the same time with Chinese medicine, can be taken after an interval of 30 minutes. 2, do not eat or eat less celery, yellow cabbage, shiitake mushrooms and other foods that enhance photosensitivity or promote immune function, as well as sea fish, shrimp, crab and other foods that can easily cause allergies. 3, wine, seafood, mutton, dog meat, chili, tea, spicy and irritating food, all foods containing preservatives and additives, such as instant noodles, canned food, drinks, etc. 4, appetite is very poor during the fever, taking anti-rheumatic drugs can also cause gastrointestinal reactions, do not think about eating, should be light, it is appropriate to give semi-liquid, such as noodles, more rice, rice porridge, etc., eat more fresh fruits, fresh vegetables, etc., drink more cool drinks to generate thirst, replenish body fluids. 5. For patients with peptic ulcers or drug-induced gastrointestinal damage, choose food that is well cooked and easy to digest to reduce the gastrointestinal burden. For those who only have local symptoms of joints, no fever and no spleen and stomach symptoms, the diet can be free, without many restrictions. 6, diet should be high in calories, high protein, easy to digest, and rich in vitamins as the principle. Avoid cold, greasy, sweet and sticky products.