rub the fleshy skin between your thumb and forefinger and press it also with feeling of pain ,drink plenty of water
Have you been checked for strep throat? Sometimes you can get a rash with strep throat.
It could be Shingles. It is usually a patch or area on the body that hurts to touch (doesn't itch though) and it is a form of herpes which usually comeout when your immunesystem is weak/fighting something (& you said you got a cold) or if you are super stressed and nervous... Shingles can also come out.
It could also be a reaction to something . allergy to something or Psoriosis
That's all that comes to mind. Feel better