Does low gr fever & slightly thick discolored mucus mean i need antibio for sure? had walking pneum, now bronchitis, did doxy 2 wks ago, still sick.

NO NO NO!!!: Almost all bronchial infections are viral. Many research studies show antibiotics don't help bronchitis more than placebo and they may do harm. I advise pellargonium sidoides, sold as Umcka in health food stores, proven much more effective than antibiotics for bronchitis; see https://tinyurl.com/y8zkbknv Also take a good multivit.,extra C and D, consider homeopathy: https://tinyurl.com/h543pq7