bacterial infection
"Took Augmentin for a bacterial infection.  The infection cleared up, but the day I took my last dose, I broke out in  severe hives.  I was out of town so did not see my doctor.  Took Benadryl every 6 hours for 4 days before the hives subsided.  The hives covered everywhere from my face to my feet.  Although it cleared up my infection, I would not want to face that side effect again. Never had any allergies to antibiotics before."