If your nephew has a persistent cough it can be allergic/ hyper reactive . Since his past history of illness or medication used is not mentioned..omnacortil as an intervention is not advisable..
would suggest you hv the child evaluated by a pediatrician to know the cause of his cough .. and then deal accordingly..
Rgds
Answered2019-11-24 10:44:27
Let others know if this answer was helpful