I started a course of penicillin and a few days later I started to get hives and they eventually covered my body. Now the hives have sort of gone flat into red itchy blotches that all join on my skin- gets much worse and spreads more where I am wearing clothes (ie. my back- and not really clothes, PJs because it's all I can bear to put on!). It looks a little like psoriasis. It's stil spreading and now on my face and neck. I haven't taken a pill since I found out I was allergic but is this reaction normal?