Risks, possible complications 1, lung damage: radiation pneumonitis, pulmonary fibrosis (mainly manifested as low fever, irritating dry cough and other symptoms), reduced lung function, coughing, wheezing tiredness, dyspnea aggravation, etc.; 2, cardiac damage: arrhythmia, aggravation of pre-existing cardiac diseases, decreased cardiac function, etc.; 3, esophageal damage: common radioactive esophagitis, mainly manifested as pain in swallowing, sense of obstruction, etc.; 4, Tracheal damage: cough, hemoptysis, radiation bronchitis, tracheal stenosis, etc.; 5, mammary gland damage: change in appearance, hyperpigmentation or hypopigmentation, atrophy, toughening of the texture, etc.; 6, systemic reactions and hematopoietic system damage, such as: fatigue, loss of appetite, nausea, vomiting, bone marrow suppression, etc.; 7, skin and muscle damage: skin redness, swelling, peeling, oozing, hyperpigmentation, vesiculation or even formation of sinus tracts, muscle fibrosis, atrophy, spasticity, muscle damage. Fibrosis, atrophy, spasticity, activity limitation, etc.; 8, spinal cord damage: radioactive myelitis, resulting in limb sensation, motor dysfunction, etc.; Precautions 1, relaxation, calm breathing, maintain the position and positioning consistent; 2, into the soft food, chewing and slow swallowing, to avoid spicy and stimulating food, if the amount of food is small, can be eaten in small portions to ensure that the nutrients supplied; 3, to avoid forceful coughing, to avoid the crowds gathering place. Keep indoor air circulation; 4, moderate neck and shoulder muscle exercise; 5, weekly recheck blood routine, if abnormal, timely treatment; 6, to protect the irradiation field skin, it is recommended to wear cotton shirts; if skin damage occurs, do not touch with the hand; 7, high protein, high calorie, high vitamin diet, such as diabetes mellitus, hypertension, hepatic and renal insufficiency, to be a specialized diet, if the amount of food is small, may be eaten sparingly, to ensure the supply of nutrients; 7, high-protein, high-calorie, high-vitamin diet, such as diabetes, hypertension, liver and renal insufficiency, to be specialized diet, if eating less, can eat more meals If the amount of food is small, you can eat small meals to ensure the supply of nutrients; 8, if there is any discomfort, promptly inform the medical staff to deal with.