I Am A 44 Year Old Woman In Pretty Good

I am a 44 year old woman in pretty good health. I had my wisdom tooth pulled on Thursday and had nitrous oxide...and today I have a rash on my chest. I haven't had any changes in my diet, laundry, soap or body wash. I also have taken more ibuprofen in the last couple of days. I am allergic to naproxen and not sure if that has anything to do with the rash. The only symptom is that it's hot to the touch.