We need to grasp the prevention methods of esophageal peristaltic dilation and barium retention in the pyriform fossa, and only by correctly grasping its prevention methods can we help control the disease as soon as possible. The following is a specific analysis. 1, remove possible triggers, such as wind and cold, damp and heat and other undesirable factors on the human body invasion. 2, strengthen physical exercise, regular life, pay attention to the combination of work and rest. 3.Strengthen nutrition and prevent infection. 4.Regulate the emotions and keep a happy mood. 5, adjust daily life and workload, regular activities and exercise, avoid strain. 6.People with cutaneous vasculitis are prone to have systemic vasculitis at the same time, often with heavy symptoms and poor prognosis when not treated properly; people with cutaneous calcium deposits often have light damage to important organs and a better prognosis. 7, acute passage, severe dysphagia, hyperthermia with leukocytosis, gastrointestinal ulcers, vasculitis severe, insensitive to corticosteroid treatment, need to add cytotoxic drugs, the prognosis is poor. 8, corticosteroid treatment is not sensitive, need to add cytotoxic drugs, the prognosis is poor. And chronic passing, vasculitis and other organ damage without or light, with skin calcium deposition is sensitive to corticosteroid treatment, the prognosis is good. 9, mucin deposition is likely to occur in middle-aged and elderly female patients, can be the first symptom of DM; blisters or macules have a poor prognosis. Very few patients with heart failure and severe arrhythmias due to cardiomyopathy have a poor prognosis, and such patients are mostly combined with systemic scleroderma. 10, PM-Scl antibody-positive scleroderma patients are much more likely to have skin calcium deposits and arthritis than PM-Scl antibody-negative patients, with a good prognosis, almost no visceral damage, and a 10-year survival rate of 100%.