The GP gave me penicillin on Wednesday for an infected cut on my knee. I went back on Friday with an itchy rash all over my face and neck. I was given a different sort of ABs but the rash seemed to get worse and on Sunday I didn't take the other ABs either.
Here we are on Monday morning and I have a raised, itchy, hot rash all over my face (which is swollen) and it's now spread round to the back of my neck.
IT SEEMS TO BE GETTING WORSE NOT BETTER. 
Does anyone have advice or experience to share?