I have an allergic reaction when taking penicillin, I took a keflex antibiotic, started itching, ears and face got hot, eye balls felt like they were swelling, and my mouth was drawing. I took 2 Benadryl and symptoms got much better, my eyes still feel like I have numbing medication in them, but my eye sight is fine. Could this have been an allergic reaction or should I seek medical attention. Feeling fine now, except for the eyes.