I Am Having A Mild Reaction To An Antibiotic. My

I am having a mild reaction to an antibiotic. My ears are plugged, my throat is swollen though I can breathe normally. I will call my doctor in the morning. I have been taking Ceohalexin 500mg twice daily for 5 days. The pharmacy did not want to fill as I had a reaction (hives) to pincillion years ago.
Do you suggest anything? I can breathe normally buy throat is swollen but not getting worse.
Thank you
carol