My son since september of 2009, gets a dry cough almost like clearing his throat. It continues till about July he is 5 yrs old. We have had him on asthma medications, gerd medications, allergy medications, and no one can figure out what it is, also took him to an ent because his tonsils are a bit large, and that punching bag looking thing (forget the name of it) is always touching the right tonsil, but ent doesnt believe that is the problem. Can you help me?
HI, thanks for using Chat Doctor The most common cause of chronic cough is post nasal Chat Doctor.  This is more likely since you state he is persistently clearing his throat. A topical nasal spray and decongestant may help. Asthma, reflux, eosinophilic bronchitis are also causes. The eosinophilic bronchitis would be diagnosed by a sputum sample and treated with a short course of steroids. I hope this helps