how do those occur??? like what would make me get a yeast on my upper body
You might have a yeast infection that you can get on your stomach or chest area,specially if you work out!
yes I had the chicken pox one time. But its def. not that. I have used antihistamine, cortisone cream, and antifungal and nothing is working.. Its only on my upper part of my body
Have you ever had the chicken pox? Use a antihistamine to help with the itching.
You might want to see a doctor about the rash. If it is shingles you will need the anti-viral and possibly some pain meds.
It is called Herpes Zoster and comes from having had chicken pox when you were a kid.
Wishing you good health