Coughing for 4 weeks now - see the GP?

[CheerfulSoul]

My 11 month old has had a cough for 4 weeks. Doesn't seem to bother him too much but DH and I can't sleep because of it. Friends have told me 4 weeks is not unusual for a cough, it will sort itself out and there's nothing the doctor can do. It's driving me mad though! Should I take him to the GP anyway or is it a waste of time?

[Frizbe]

Yes because if its on the cheast they can do something about it, hth's