My hand is really itchy and will sometimes crack or have tiny bubbles that leak when i scratch my hand what is itk?

Pompholyx: You most likely have pompholyx, a common type of eczema affecting hands, fingers, and sometimes feet, also known as dyshidrotic eczema. The cause is not known, but may be related to problems with sweating. It can get infected by bacteria and get aggravated by contact with irritants such as water, soaps and detergents. You need to be evaluated by a physician with a good history and exam.

Hand eczema: Dyshidrotic hand eczema has symptoms as you have described. It usually responds to a prescription strength cortisone cream or ointment.