So far I,ve taken steroids, antibiotics, nasal sprays, inhalers,prescription strenght cough medications, allergy tests, which should nothing of significance, methacoline test for asthma, came out negative. Even had the barium test for gerd, was prescribed acid blockers, which made me very sick. X-ray of the chest nothing showed up. Went to see an ENT specialist, he did not find any polyps. only mentioned my right nostril is narrower than the left one.  My aunt also has semilar problem, she has suffered it for 25 years.  I've had this coughing for 6 years now.  Cold, spicy foods, strong smells, dry air, just about anything can set it off, even sleeping on my right side.  Inow suspect eating cucumber, melons, and pears, haselnuts, and chocolate also sets off the coughing, my nose running.  I feel miserable, please help me.  Recently on the show "Doctors" on CBS, I saw Botox being used to control Rhinitis, is it safe? and will it help me?