Im 33 and I have a rash that s spreading quickly all over my arms, hands, legs, feet, and torso. Its hard small blisters mainly on my hands and feet, and bigger around red bumps. They are very itchy and painful and it doesn t look like any of the rashes iv had before from poison ivy, oak, or sumac or hand foot and mouth disease. Please help me with what it could be iv never had chicken pox but iv been vaccinated for that years ago.