Eczema? very itchy and sore and unsure on what it could be help? (photo)

hello needing some help as recently a random rash occurred on my right hand and is now very itchy and sore. it started off only being a few itchy bumps then today it was all over my hand? I'm unsure how this suddenly happened or what it is? how suggestion or help would be appreciated.

sorry these are the pictures i didnt mean the other ones
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Hi I appear to have the have the same thing and it has been going on for about two years. A biopsy was taken and nothing showed and I was prescribed Fucibet 30g. Now as I have been applying it for so long it doesnt seem to help. The itching and soreness goes off for a short while but the sores still stay. I will be following this post in the hope that someone out there has some advice.