I m currently undergoing treatment for bilateral bacterial pink eye and have been using opthalmic erythromycin for 6 days now... and I am experiencing very painful swallowing. Two days ago, it was just in the middle of my throat and kept me from sleeping. Now, the pain is off to my left when I swallow. I have no difficulty breathing or eating and no fever. I have not seen any pus or bumps in my throat, but it s hard to see if there s inflammation near the tonsils. I ve developed an annoying, tickling cough now and then. I am an otherwise healthy, 34 year old female who is still breastfeeding a 7 month old. Thanks for any help.