Good news my doctor finally convinced herself that my son had a reflux problem and decided to treat it aggressivly with Orgastro, and Domperidone. Well guess what folks he has stopped choughing
Reflux and asthma go together. Reflux makes asthma worse and you cough a lot and all that coughing pushes your belly up and makes you reflux more. Treat both problems aggressively and don't worry too much about which one is bothering the other. After your child has been "clear" for a couple of months, back off the asthma medicines a bit and see how it goes.
Finging those type of doctors in this part of the world is difficult. To me it is so clear that he has a reflux problem. If some thing is irrating his throat would that cause it to become infamed. If ventolin is given would that not cause his airways to open. Therefore he may respond to Asthma medication
Chronic cough is a young child is always frustrating for parents. It often takes some effort to make the diagnosis and control. Determining if the cause of the problem is the upper or lower airways or a combination of both is the first step. Once this is determined, directed therapy can be approached. I would suggest seeing either a pediatric pulmonologist or pediatric allergist to start working on this process. While it is possible that you may have to see both, one should be able to make the diagnosis after some testing.
Perhaps you should seek another opinion and also keep a journal of what your child eats, what environmental allergens trigger his coughing both inside and outside, even air conditioning. Good luck!!