6 year old with persitant cough? i have a 6 yr old step son with a persitant cough brought on mostly when he been playing or excited. Like today he was making a joke, every one was laughing, he was so excited he made "a funny" that everyone laughed at and he was laughing so hard he coughed so hard he vomited. Most of the time though when he coughs it's usually after he's been playing hard. My husband and his ex-wife say he has a cold..always he has a cold!! I have asked them to take him to the doctor that maybe he has allergies or bronchitis or something else that is triggering this cough. I have been with my hubby for a year and i have raised 2 older children i know when a child has a cold, this never seems to me to be a cold. The cough is always deep and hard and lasts for more than 5 minutes. Sometimes after playing hard, nothing, sometimes it's pretty bad. I am at my wits end...Any advise out there?

Summarized question: How to treat a 6-year-old with a persistent cough?