Don't be scared if it is bronchitis. The majority of cases are viral, meaning even if they do give you drugs, they are only easing sypthoms. Over all if you have that, what you need the most is rest, rest, rest, and MORE REST.

Lots of liquids, plenty of Vitamin C, and MORE REST.

It will work its way out of your system, but it will take a while just because of where bronchitis is in your system. (Weird arse bronchi tube.)