I hope you start to feel better soon! The last time I had bronchitis, we had to try 3 different antibiotics before one started to work. The first made me sick (couldn't even take the full round) and the second just made me itch. The third finally knocked it out of me but for the life of me I can't remember which one it was!
I also had to get a chest x-ray to rule out pneumonia or any more serious condition but it really wasn't a big deal. I just hate anything having to do with doctors and hospitals so I wait until I absolutely HAVE to go.
Many feel better
coming your way!