See his doctor: A cough that occurs at night can be from many causes, so he should see his doctor to find out what the issue is. Otc cough/cold meds are not indicated in children under 4 years old. A cool mist humidifier can give some relief, as well as giving extra clear fluids to loosen the mucous. Use saline nose drops and a bulb syringe to remove mucous from his nose so he can breathe better.
Answered 10/4/2016
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