question: I have what I believe is a brown recluse spider bite on my right shoulder next to my armpit. This happened early Friday morning. I developed a bright red rash like a really bad sunburn Friday night all over my body. I went to the ER Saturday because I was dizzy, had nausea, and red. They prescribed meds for allergic reaction. It started to lesson in redness but this morning. It was just as bright red and has stayed that way all day. I now have purplish spots on my stomach and what look to be blisters on the left side of my stomach.