Hi some help please my son is 7 and is genuinely healthy he has a cold just now just like me and his 22 month old sister but when he coughs he sounds like a dog barking. He has always gotten this croup cough ever since he was little but the doctor says it's not asthma but I think it is as I have asthma and every time I was ill I got the croup barking cough my daughter on the other hand has a normal cough and never had a croup cough. Do I let it run its course or take him the doctors again