Stomach rash at 16 weeks?

Erica

I have had the stomach rash exactly one month ago, and today it came up again in the EXACT same spot ! Idk what this is or why its here, but my whole body is itchy and the spot is a little tender. The pic on here doesnt really justify how red it is in real life so I circled it to help see where I mean. Has anyone had this?! I have an apt with my midwife later today so I'll be sure to ask, last time she said possibly shingles but shingles doesnt come and go like that right?!