Sudden Painful Rash

I suddenly developed a painful red rash on my right wrist 2 days ago, and today I developed achy joint pain in the joints of my fingers just in my right hand. I’m not sure if the joint pain is related to the rash as I’ve had joint pain on and off for years (but has decreased significantly in the last year) as well as carpal tunnel syndrome in my right wrist. I was in the sun for an extended period of time 2 days ago and almost my entire body got sun burned, and immediately after this rash formed on my wrist so I had assumed it was part of my sunburn but after having a friend who is a pharmacist look at it who said it is definitely not a sun burn I’m not sure what it is. I haven’t used any new perfumes/products so I’m stumped. image