Bronchitis really sucks. Every time I get sick, I get bronchitis so I know your pain. Usually, when it gets to a point my doc would give me an antibiotic, and it'd clear up in a week. I've literally had it for a month at a time, and it is just miserable. With that being said, make sure you stay very hydrated, and if you're laying down a lot, move positions every so often to prevent the phlegm from settling in your chest. It is very easy to let unchecked Bronchitis get worse, and when it does you can get pneumonia very easily. If your temp becomes unmanageable, remember, you can safely take acetaminophen and ibuprofen together (102-103 is when it starts to get bad). If you have health ins, most plans cover the Nurse Hotline (info should be on the back of your card). So, if you have any questions you could speak to an RN to get their opinion. All of the other comments suggesting supplements are spot on. For peace of mind, you may want to pick up a cheap pulse ox (you can find these at Walgreens, and CVS near the pharmacy) to monitor your o2 sat levels.