Hope you are doing great.
From the history provided, it seems you have either palmar psoriasis
or palmar eczema
. Meet your dermatologist
to help you.
Try to follow the following:
1) Apply vaseline petroleum jelly twice a day on your hands, preferably on wet skin
2)Use very mild soap for hand wash and bath
3) Avoid hand contact with raw fruits and vegetables, chemicals, heavy oils, grease, irritants, spices, etc.
4) Do not use very hot water for bath or hand wash.
Hope this helps you.