1. Why should patients with polymyositis/dermatomyositis eat a high-protein diet? For patients with polymyositis/dermatomyositis, a high protein diet should be given in order to maintain strength and restore muscle power as soon as possible. Such as more fish, lean meat, eggs, etc., can also be added to three meals a day on the basis of an egg, lean meat one or two. 2. Why should patients with polymyositis/dermatomyositis eat more foods high in fiber? Patients with poly/dermatomyositis often have smooth muscle involvement in the digestive tract and slowed intestinal peristalsis. The anal sphincter is diseased and the normal bowel function is impaired, leading to stool retention. So eat a high-fiber diet, such as leeks, celery, soy milk, carrots and other vegetables and fruits, which can prevent dry stools. 3, what foods can not be eaten by patients with polymyositis/dermatomyositis? The actual fact is that you should not eat any oily, spicy, cold, hard or other irritating food and quit smoking and drinking. The actual food is not only a good idea, but it is also a good idea to eat less seafood, shrimp, crab and other seafood that can cause allergies. Various vegetables and meat in food should be chopped as much as possible. Take easy-to-digest thin and soft food as appropriate. Eating speed should be slow to prevent choking into the trachea. 4, multi/dermatomyositis patients with choking, swallowing difficulties in the diet should pay attention to what? The disease often invades the muscles of the pharynx, causing difficulty in swallowing. When eating, patients will have symptoms such as no choking and difficulty in swallowing. To prevent aspiration, patients should sit or semi-sit when eating, and give semi-liquid diet, such as soft noodles, thin rice, rice soup, sesame paste, etc., because it is easy to form a food ball for swallowing. Eat a variety of vegetables and fruits, meat should be chopped, do not eat hard, greasy, spicy and stimulating food. It is advisable to have a small number of meals, the speed of eating should not be too fast, to slow, small mouth to eat, to prevent choking into the trachea. 5.Can patients with polymyositis quickly regain their ability to care for themselves? Polymyositis is a chronic and progressive disease with a good prognosis of 2-3 years of recovery. It takes about 1-6 months from the start of hormone therapy to the maximum improvement of the disease, usually 2-3 months. Therefore, they cannot recover quickly. Patients should understand the general knowledge of the disease, establish confidence in the treatment, actively cooperate and start to resume activities after the symptoms are relieved so that they can resume self-care as soon as possible. 6.How to maintain muscle strength in patients with polymyositis/dermatomyositis? Patients with dermatomyositis should rest absolutely in bed during the acute phase and reduce activities to avoid or aggravate muscle damage. Pay attention to turning and patting the back to promote the elimination of sputum and prevent the occurrence of crushing pneumonia. Also strengthen skin care to prevent various infections. After muscle strength starts to recover, encourage and assist patients to perform muscle strength exercises, first give passive limb exercises, then let patients do active limb exercises, and do a good job of helping to prevent over-activity or falls due to muscle weakness. 7. What are the principles and methods of functional exercise for patients with polymyositis/dermatomyositis? In the acute stage should be absolute bed rest, avoid activities, so as not to aggravate the symptoms of dermatomyositis. After the symptoms are reduced, patients should be encouraged to perform appropriate passive or active activities in bed, such as limb extension and flexion, lifting arms, lifting legs, holding objects and swallowing to prevent muscle contracture; if the condition further improves, the amount of activity can be increased appropriately, such as walking beside the bed with the support of family members, walking out of bed on their own, walking, going to the toilet, going up and down stairs or playing tai chi and other exercises. 8.What should I pay attention to when I am active before my muscle strength is fully recovered in patients with polymyositis/dermatomyositis? The patient should not be in a hurry when doing exercise, but should be gradual and persistent, gradually increasing the intensity and time of exercise to reduce muscle atrophy. Someone must protect the patient during the activity to prevent injuries from falling. Gradually increase the amount of activity to the next day does not feel fatigue is appropriate, do not strenuous exercise. It can also be combined with massage, massage, hydrotherapy, diathermy and other physical methods to prevent muscle atrophy and contracture.