Penicillin Skin Test

I, myself, have not experienced any adverse reactions, allergic reactions, or any drug-drug reactions. But I do have a couple of friends in nursing school who have experienced reactions during their clinicals and they sometimes talk about stories in the hospital. In one case, a patient at a hospital in Fort Wayne had an allergic reaction to penicillin. The registered nurse my friend was with asked the patient if she was allergic to anything and she replied yes. But, she had no idea what the name of that drug was. In this case, the nurse could have done a penicillin skin test, which I was told is pretty simple. All you have to do is give a tiny bit on the skin's surface and if you're allergic, a little itchy red bump will appear on that little