Last summer my ds now 4 was suffering from hayfever with a very bad reaction to his eyes. he also started slightly wheezing. The doc said he had asthma and gave us a preventer inhaler. After being referred to the hospital (they say he has a possiblr immune problem as he has low antibodies)i was told to not use the preventer and just a reliever. He has barely needed to use it but he has had a cough for the last 5 or 6 weeks although it didn't cause much problem for him. Anyway this week he got all snotty again and the cough worsened, he is coughing and coughing so have given him the inhaler. Is this really asthma or just a cold and when do i worry and see a doctor about the cough? My dh isn't here tonight and i am feeling really stressed with everything, help!