Moderate inhalation injury refers to injury above the tracheal ridge, including the pharynx and trachea. The cause of inhalation injury is mainly thermal, but also inhalation of large amounts of unburned smoke, charcoal particles, irritating chemicals, etc., which also damage the respiratory tract and alveoli. Therefore, inhalation injury is a mixture of thermal and chemical injury. Carbon inhalation injury is related to the environment in which the injury is caused. It often occurs in the non-ventilated or confined environment, especially when the explosion combustion, this environment, the concentration of hot flame, high temperature, not easy to spread quickly, the patient can not immediately leave the source of the fire; coupled with the confined space, incomplete combustion, producing a large number of carbon monoxide and other toxic gases, so that the patient is poisoned and unconscious, heavy asphyxiation death. When combined with explosive combustion, high temperature, high pressure, high flow rate and thick toxic gases can cause damage to the deep respiratory tract and lung parenchyma. In addition, patients standing or running around shouting, resulting in hot flame inhalation, is also a cause of injury. It is necessary to try to psychological adjustment, usually to try to participate in outdoor activities more public recreational activities, to promote physical and mental balance, usually can be appropriate to eat more vegetables and fruits, to ensure that drinking water every day 1500 ml, you can drink honeysuckle infusion, which is conducive to promote the body’s metabolism, to promote the relevant chemicals from the body as soon as possible metabolism. Prevention and treatment of infection after inhalation injury, due to airway and lung damage, cilia function destruction, airway secretions and foreign bodies can not be discharged in a timely manner, local and systemic resistance decline, etc., often lead to airway and lung infection, once the infection, if not treated in a timely manner, can be complicated by acute respiratory failure, and become an important focus of systemic infection, inducing sepsis. Thorough removal of foreign bodies and detached necrotic mucosal tissue in the airway and unobstructed drainage are the basic measures to prevent and treat infection, followed by strict aseptic technique and sterilization isolation, strict control of trauma-lung-trauma bacterial cross-infection; regular smear and culture of airway secretions and selection of sensitive antibiotics, in addition, systemic support therapy should be strengthened to improve the immune function of the body, which is of rational significance to prevent and treat infection.