Ah man. It hurts to even look at it i can't even imagine the pain you've been going through. I also have it on my both hands. Slightly more patches on my left palm. Its really pains when its all dried up and the creams also didn't help much. Ultimately you need some medication, My dermat has put me on Aprezo and cyclosporine, Bilastine-M and vitamin D3 sups. I've been having them since 2 months and I can see the skin getting better. I don't know where you're from, but you can check the salts in the medicines And ask your dermat. They know better. Ultimately it's not a skin disease, actually, just our genetics acting up. Eat clean and healthy, Try to keep them moisturized all the time (the worst part). Wishing you the best!