Hello. I completely understand your frustrations with your GP and your child's condition. My son, William, had pnumonia at 5 1/2 months of age and was give albuterol to get rid of the cough. While the majority of the cough went away, when the weather got cold and damp, it returned. Then, any time his sister or anyone else in the house got a cold he got a HUGE cold and the cough never seemed to goa way. When we mentioned it to his pediatrician, his response was to keep giving him the albuterol as needed and that they coulnt' test for asthma until he was 2.
I know for a fact this is BS because he went to daycare with a baby who was on a nebulizer from the age of 8 weeks(she had SEVERE asthma), but I didn't argue, against my better judgement. Anyway, my son just turned 2 on 12/28, and sure enough, when we went to see an allergy/asthma specialist, he was diagnosed with asthma! I am SO mad. I told the doctor that he's been on albuterol almost constantly since the pnumonia, and he said he should've seen him MUCH earlier. Now he's on Singulair once a day(in the evening) and has a nebulizer to use if his cough gets really bad. We were also told to use the albuterol if we're away from home and he starts coughing, but since starting the Singulair, he hasn't needed either the nebulizer or the albuterol! I'm amazed at the difference. Of course, the weather has been extremely warm for January(50-70 degees in MD!), so we haven't had to deal with the cold weather yet, and nobody has had a cold lately. He got blood drawn to see if he's allergic to anything(he had a huge rash in the summer, but again, they wouldn't do allergy testing until he was 2---WHY???), and we'll find out the results on the 23rd.
Good luck with your child. I would call an allergy/asthma specialist and go in for a consult. They might not actually do any testing, but they should be able to give you an idea if the child has asthma or not.
Also, if you want to read a good book, read "Children with Asthma: A Handbook for Parents". I borrowed it from our library and it is WONDERFUL.
Feel free to email me if you want to talk.