1, Airway care After inhalation injury to the airway, susceptibility to microorganisms increases, and the airway becomes an important route for systemic infections; therefore, removal of airway secretions from tracheotomized patients is an important measure in the treatment of inhalation injury. 2, wetting The inhalation of dry air by patients with scalded injury will increase the viscosity of secretions in the trachea to cause blockage and lead to lung infection, and only adequate wetting and drainage of sputum can effectively prevent lung infection. (1) Airway drip: Configure sterile saline (60ml saline plus gentamicin 80,000U, chymotrypsin 4000U) every 0.5~1h airway drip 2~3ml, and replace the airway drip daily. (2) with saline gauze 1 ~ 2 layers cover the outer cannula generally 2h replacement once, but also according to the actual specific circumstances at any time. 3.Nebulization Inhale the nebulized liquid containing antibiotics through ultrasonic nebulization 3 times a day, 15～20min each time, in order to achieve the purpose of diluting sputum, which is conducive to sputum coughing out. At the same time, encourage the patient to cough effectively and assist the patient to turn over and pat the back regularly. 4, sputum suction Before sputum suction, select the appropriate disposable suction tube, first increase the oxygen flow to 5L/min, observe the patient’s general condition, both 2min after oxygen given sputum, pay attention to the aseptic operation, sputum suction action should be light, steady, accurate, suction pressure 0.033-0.0553mPa, suction time should not be more than 10-15s, not continuous sputum suction, so as not to produce paroxysmal coughing, hypoxemia, hypoxia, and cardiac arrhythmia. Blood pressure should be lowered and cardiac arrhythmia should be avoided. Each time sputum suction to the trachea into a certain amount of sterile saline 3 ~ 4ml, sputum suction from the inside out, left and right rotation, do not fix in one place, pay attention to rotate the suction tube, fully suction, including adherence in the tracheal wall of the secretion, sputum suction is also given to the end of the 5L/min oxygen, while close observation of the patient’s lips, cyanosis, the frequency of whistling, the sputum trait, volume and color, the patient is stable to regulate the oxygen Adjust the oxygen flow rate when the patient is stable. 5.Close observation of the condition changes Vital signs are the indicators to measure the improvement and change of a certain stage of the disease, and provide the basis for the diagnosis, treatment and care of the disease. Use continuous electrocardiographic monitoring to monitor, find abnormalities, and deal with them in time. Pay attention to the observation of patients with high fever, vomiting, acute gastric dilatation and other complications. 6.Oxygen inhalation Oxygen inhalation can improve the partial pressure of alveolar gas oxygen and PaO 2, so that the arterial oxygen saturation and blood oxygen content increase, so it can improve the oxygen supply to the tissues. According to the patient’s oxygen saturation, adjust the oxygen flow, in this case, the use of endotracheal medium-flow oxygen inhalation for 12 days, and then given to the bilateral nasal catheter low-flow oxygen inhalation for 4 days. 7.Control the infection Give antibiotic treatment, in addition to endotracheal drip and nebulized inhalation add gentamicin at the same time for intravenous administration of systemic antibiotic treatment. 8, strict implementation of aseptic operation every day with 75% alcohol to disinfect the tracheal tube outside and around the skin, keep the tracheal incision gauze clean and dry, change the dressing 2 times a day, such as sputum contamination in time for replacement, the catheter outside the mouth with 1 to 2 layers of sterile gauze cover, can prevent the outside world air contact contamination, the inner trocar boiling disinfection every 4h 1 time, oral care 2 times a day. 9, the sick room management to maintain the temperature of the sick room 25 ℃ ~ 28 ℃, with ultraviolet air disinfection 2 times a day, 1h each time, pay attention to protect the patient’s eyes. Mop the floor twice a day with 1000mg/L effective chlorine disinfectant. Restrict visits to prevent cross-infection. 10.Psychological care Patients are afraid of future work due to accidents and worry about the after-effects, we should win the trust with skillful operation technique and warm and considerate service to reduce the psychological burden of patients and establish the confidence to overcome the disease.