How long it takes for bronchitis to heal on its own depends on the severity of the child’s condition, physical fitness and other factors, and cannot be generalized. Pediatric bronchitis is a common childhood respiratory disease, usually caused by common viral infections, influenza virus infections, etc. It can also be seen in bacterial infections, and is related to the child’s own immunity, allergies and other factors. If the bronchitis is mild and the child is in good health in the past, it can usually heal itself in about 7-10 days. If the child’s bronchitis is severe, with symptoms such as fever, cough, sputum, shortness of breath, crying, etc., he or she should not wait for it to heal on its own and should be seen by a pediatric respiratory clinic in a timely manner and treated with medication as prescribed by the doctor. During the period of illness, the child should eat a light diet with fresh vegetables and fruits, and refrain from eating a high-protein diet, such as milk, soy milk and eggs, to prevent the aggravation of coughing and wheezing.