Bronchitis is a difficult one, my son has never had it but he has had colds and I know they were bad I can't imagine it being any worse. We are firm believers in humidifiers and those Sudafed Plug ins that realease menthol vapors it really works and also raise his mattress up a little if you haven't done so yet, that helps too. As for the eating that will come, don't force it, his throat might me sore, or he might have a stomach ache from some drainiage of the bronchitis. I always, ask myself when I am feeling like they are do I feel like eating, and usually its the right answer. My mom told me to remember they are people just like you and me. Good Luck and I hope he feels better soon. K.