Dry cough/acute bronchitis. To be done.

I am having cough from past 5 days. I had consulted a doctor but the medicines did not work.and the cough is so severe that i am unable to sleep at night.the moment i try to sleep i get cough attacks. I tried all home remedies but all into vain.i am getting cough attacks during day as well as night and they are so severe that at times i vomit.it is very stressful and i am unable to get rest and proper sleep.i havent slept from past 5 days. I tried taking honey, herbal tea, ginger, sleeping on inclined bed and every other home remedy available on google but my condition isnt improving.i have previously consulted 2 doctors and the medicine given by them is not effective on me. My cough is getting worse day by day. kindly suggest what is to be done.