Huf puf kit is used in reactive airway disease.It  depends on child condition chest sound and cough cold.Often, the term "reactive airway disease" is used when asthma is suspected, but not yet confirmed. Reactive airway disease in children is a general term that doesn't indicate a specific diagnosis. It might be used to describe a history of coughing, wheezing or shortness of breath triggered by infection. These signs and symptoms might or might not be caused by asthma.