I can’t get into the doctors for two weeks. What does this look like?

[Mountsnowdon]

I found this circular scaly red spot on my side a few days ago and it’s not improved at all. I’ve made an appointment at the doctors but I’m worried what it could be. Any ideas?

It could also be a herald patch of
Pityriasis rosea. en.m.wikipedia.org/wiki/Pityriasis_rosea