Hi, I Had My Wisdom Teeth Extracted About A Week

Hi, I had my wisdom teeth extracted about a week ago. On day 5 I've noticed little bumps on my face. It spreader very quickly and now it covers my entire face. The bumps are skin coloured, a little bit red and seems to be getting worst. My face feels dry and inflamed . I also have these little bumps only early visible on top of my right hand. I did take pain killers such as oxycodone. I also took on day 5 two amoxicillin pills and that's when the rash started. Could this be the cause ?