Doxycycline
bronchitis
"Miracle worker! 

I was on amoxicillin for 5 days went back to my GP as my symptoms were no better if anything the infection had spread.
My GP swapped me over to Doxycycline and with in 24 hours I started to notice improvements, I'm on day 4 (7 day course) and today is the first day I've not had a fever or been coughing non stop. The coughing is still quit persistent but with this med I'm hopeful I'll be ok very soon. 
Minor side effects for me; dizziness & headaches"