Wheezing with tickle in my throat

[pjw34]

I have had a persistent cough for about 3 months.  It changes but never seems to go away.  I am not tired and I am not losing weight.  I get a tickle in my throat now, that even drinking water doesn't help.  I do not have a hard time breathing or exercising.  It is just an annoying cough that comes at the most inconvenient times.  When I breathe a certain way I can hear wheezing in my throat.  Sometimes it is a dry cough and sometimes it isn't.  Can you help?  I will take any suggestions at this point.  The first time I went to the doctor he said it was habit and I was getting over it.  The second doctor gave me antibiotics that helped only slightly.  

[National Jewish Health]

Your doctors should try to determine the cause of your cough.  The first step should be a chest x-ray.  Chronic cough can be a symptom of asthma, chronic infection, postnasal drip or gastroesophageal reflux (GERD) with or without heartburn.  Then after the x-ray, if it is negative or normal, you should have a good examination of your nose, throat and sinuses by an ENT specialist, including examination of nose, throat and larynx with a fiberoptic laryngoscope.  Any exam without laryngoscopy is incomplete.  It could also be helpful to have pulmonary function tests (PFTs) with inspiratory and expiratory loops.