I have had a crop of blisters in a pattern on the lower section of each of my middle fingers I think it started after a very hot day we had and holding hands with my grandson who also had sweaty hands. His mum says he hasn’t got a rash as well so I don’t think it’s infectious although very itchy. I’m itchy in other areas of my body too but no rash except occasionally hives on my calves and a vasculitic rash on my calves. Itchiness keeping me awake at night and uncomfortable during the day. I regularly take amitryptiline for sleep and montleukast which I think is an immunosuppressant. Currently taking cetirizine using anusol and body moisturiser soaking skin in lukewarm water but nothing is helping. I don’t know what’s causing it they start to form dry crusts and the blister gets smaller but turns orange then more keep popping up. Any ideas or advice welcomed.