My wife was stung by a wasp on Friday and had a bad reaction. She went to the dr., who prescribed an antibiotic and Benadryl. Two days later she deveoped the following symptoms: chest tightness, ringing in one ear, a sore throat on the same side. She went in to the ER and they did 2 EKGs, a chest X-ray, and blood tests. All came back normal. Today, she s having the same symptoms, plus her leg and hand have been cramping. She stopped taking the Benadryl last night because the dr. thought she might be having side effects from it. Any thoughts on what might be going on?