 [ Symptoms ] i took zitrimax for flu and am still on prednisone could this cause swollen lymph glands had flu middle of january took zithromax and a round of prednisone was still not completely well so doctor put me on another round of prednisone will take last pill 21<negative_smiley>2014 problem is in neck area by lymph nodes on my left side could these meds be causing swollen gland [ Disease ] zithromax will have no effect on influenza it is an antibiotic and this would only work for a bacterial infection influenza is a virus the prednisone may have been for wheezing   neither medication will cause swollen lymph nodes but your underlying medical issues whether it was influenza or not certainly can you would need to see your medical provider again to properly evaluate the significance of those nodes