Also, a few days (3 or 4) before the rash started, I had a very brief (3 seconds or so) unprotected
oral sex exposure of which I was the recipient (I am male, received from female). I also slept in two different houses (a friend's and my sister's) a week after this exposure. The rash started on my face, mostly my forehead and cheeks and appeared as a slight sunburn. I had spent a day in the sun while finishing the Amoxicillin, so I didn't think much of it.