Cao Hong, Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine: There is a type of asthma called “cough variant asthma”, and the diagnostic criteria are: 1. persistent or recurrent cough attacks for more than one month, often at night or early in the morning, with little sputum, aggravated by exercise or exposure to foreign bodies; 2. no signs of infection, or ineffective after prolonged antibiotic treatment; 3. bronchial cough can be relieved by dilators; 4. There is a personal history of allergy. A positive acetylcholine excitation test, as you mentioned, is also an indicator for the diagnosis of atypical asthma. I don’t know if the child has taken bronchodilators, anti-allergy drugs, if the effect is good, the child may be cough variant asthma, the child already has a history of 2 pneumonia, immunity should be very low, it is recommended to increase the child’s immunity while giving treatment. Cao Hong, Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine