Babies are relatively young, often choking and coughing symptoms during growth and development, parents must pay attention to it. The baby chokes after purring, often due to stimulation of the throat mucosa, food accidentally into the trachea, aspiration pneumonia. 1, stimulation of the throat mucosa: the baby chokes after the throat mucosa is stimulated resulting in increased secretion exudation, that is, increased throat mucus, so when the baby breathes, can appear purring sound. You can give the baby appropriate water, pat the back to relieve; 2, food into the trachea by mistake: baby choking, milk, water or other food into the trachea by mistake, can lead to partial blockage of the trachea, and then appear grunting sound. Generally can be relieved by patting the back, squeezing the stomach, can also be used to induce vomiting method, that is, fingers into the baby’s mouth, stimulating vomiting. If still not relieved, you should go to the hospital pediatrician, if necessary, the use of bronchoscopy to remove foreign bodies to relieve symptoms; 3, aspiration pneumonia: choking, foreign bodies or oropharyngeal secretions displaced into the lower respiratory tract and lead to inflammation of the lungs, can be manifested as the sound of grunting. Bronchodilators, such as amiloride oral solution, and anti-inflammatory drug treatment, such as cephalosporins, can be given as prescribed by the doctor to keep the airway open. Back patting can be given when coughing up sputum to help the sputum to be expelled. If the condition is serious, it may cause respiratory failure and heart failure, and should be treated with oxygen in time and assisted breathing with ventilator if necessary. In addition, gammaglobulin can be applied according to the infant’s resistance to enhance supportive treatment.