Hi Could be hand eczema Share pictures to confirm it.

Don't worry...you are suffering from psoriasiform dermatitis causing this cracks... Specific medicine available for good control... Treatment depends on the severity..Do direct online consultation for detailed prescription by sending photos.

Hand eczema, also known as hand dermatiti. Both genetics and contact allergens and irritating substances play a role in triggering”this form of eczema. It often affects people who work in cleaning, catering, hairdressing, healthcare and mechanical jobs where they may come into contact with chemicals and other irritants like detergents. Dryness, to the point of peeling and flaking , itching and occasionally pain can also b associated. Effective medication is present to control the same. Consult a Dermatologist fort he same to prevent further progression of the lesions.