Hi, my mom had bronchitis, from the flu, which at first she didn t know it was the flu. The covering Dr. gave her an antibiotic, generic zythromax, and it took away her appetite and gave her gastritis. She has been taking nexium for reflux for years. Now she is over the bronchitis, been 7 weeks, and she now has a U.T.I....so the Dr, gave her another antibiotic, which made her stomach very bad, and after 2 days she stopped it. It s been 4 days since she stopped the antibiotic, but her nausea and lack of appetite have not improved. Her Dr. did her bloodwork 2 days ago, but all was good. Do you know what could be causing the continuation of her stomach queasiness and loss of appetite?