Hi i have wheezing going on and clear phlegm coming out once in a while I went to the doctor for it and they sed it was post Nasal drip ....and my bronchitis was going away and that I will get rid of this post Nasal drip in a wile but I took all this med for my bronchitis it went away as well as post Nasal drip one of the Dr gave me a inhaler for my bronchitis and when I went back to make where it was not amonua the. Dr sed did that in haler even work I sed yes ...and then they gave me some meds but months after that...I still use !y inhaler once in a wile and cough sometimes and wheeze do thank my bronchitis turned into post Basel drip and then allergy s and then asthma ????? Can that happen???