I got this nasty whole body rash on waking for a week now, taking benedryl makes it go away.

I already washed my sheets and stuff and didn’t make any changes in soap or anything.

It actually first happened eating a mcdouble my lip kinda went numb and on waking I had the rash

Happened before and went away but it wasn’t this bad, I don’t want to go to the doctor.

Any ideas what the cause may be, it seems to get worse with heat warmer areas of skin on skin get redder faster.