For dermatomyositis, it is a relatively difficult disease to treat in rheumatology. Because dermatomyositis can cause skin and muscle lesions, but also cause serious complications, especially interstitial pneumonia. For recurrence of dermatomyositis, the dosage of glucocorticoids should be increased, and hormonal shock therapy is needed in severe cases. In addition to glucocorticoids, immunosuppressants for dermatomyositis recurrence is also very important, commonly used in the treatment of dermatomyositis immunosuppressants, including cyclophosphamide, moratorium, azathioprine and other parts of the severe recurrence of dermatomyositis patients need to be added to the use of immunoglobulin. In short, dermatomyositis recurrence should be highly valued, and systematic treatment to avoid serious complications and even endanger the patient’s life.