I was on day 10 of antibiotics for dental work, the last 3 nights I woke up itchy and hot. Last night I woke up and could not fall back to sleep, took an oatmeal bath as I noticed the beginning of hives, I ve been taking Benadryl tidy and soaping. Hives awe worse, do I need to go see a dr. Antibiotics course is over. Tooth implant appears to be normal, no drainage, never has been, no soreness. Implant is for a cap.