Is he having a fever
too along with cough? Does he have any breathing difficulty or fast breathing?
Is he a known wheezer?
What is the type of cough? dry or moist one? When is the cough more?
It would be better if you can get back with these details.
Usually cough associated with wheeze will be more in the early morning and night time and may be associated with vomiting
following a cough.
If he is known wheezer- there are chances that with any viral infections or cold
, he might end up wheezing
. In such a case he might need medications like ventorlin that open up the airways. If he does not respond to ventorlin alone, nebulisations may be tried.
Phensedyl- has a potent cough supressant and may be used in dry hacking cough with a clear chest.
You always have freedom to get second opinion
Hope my answer helps you.
Wish your son a speedy recovery.