If your child is having cough very frequently, and is triggered by exertion or is frequently having cough more in the morning or night, there are chances that it is not just plain cough or bronchitis. It could mean more than that. The child could be having asthma. Wheezing is often thought to be the only indicator for asthma. This in fact is not the complete truth. At times cough may be the only symptom that your kid shows. This situation in medical terminology is also called as ‘cough variant asthma’.