Dermatomyositis infected lungs through the early standardized treatment generally does not affect the normal life of patients, it is recommended to actively cooperate with the doctor to receive standardized treatment. Dermatomyositis infected lungs can take antibiotics such as ceftriaxone, azithromycin, clindamycin and other drugs to control the infection, for dermatomyositis can take methotrexate, azathioprine and other drugs to improve the symptoms and promote recovery. Due to individual differences, there is no absolute most effective and safest drugs, need to be under the guidance of the doctor combined with their own situation to choose the most suitable for their own drugs, adverse reactions appear as soon as possible to seek medical attention, drug allergy is prohibited. By actively cooperating with the doctor to receive standardized treatment, it is possible to control the infection of the lungs, does not affect the normal life of the patient. It is recommended that patients with dermatomyositis go to the hospital in a timely manner and follow the doctor’s instructions to avoid delaying their condition.