Asthma in infants is typically characterized by recurrent episodes of cough and wheeze, chronic cough and other symptoms. 1. recurrent cough and wheeze: asthmatic children’s cough and wheeze symptoms in paroxysmal attacks, to the night and early morning, in the acute attack of asthma, there can often be inspiratory triple concave sign, both lungs can be heard rales and dry rales. 2. Chronic cough: this kind of cough variant asthma, there is no obvious symptoms of wheezing, only manifested as chronic cough, but also at night and early in the morning episodes are mainly, the symptoms worsened during exercise. If the asthma symptoms are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner to give targeted treatment to prevent the symptoms from worsening, jeopardizing the health of infants.