I fell and hurt my hand. i had an x-ray, which showed no fracture. but i still have a terrible pain. what can i do?

Depends: X-rays show bones and their relationship to each other. An x-ray will not show crushed tissue, though it will show swelling. Swelling makes nerves send pain signals to the brain. Pain medication (anti-inflammatories) will help, as will elevation, immobilization and resting the hand. If not sure what was injured, go see your local hand surgeon for expert evaluation, make sure ligaments are ok.

Repeat X-ray: On occasion, hairline fractures may not be initially visible on the first set of films but may take more time to become apparent on a second set of xrays obtained a week later. Otherwise rest, ice, compression, elevation and nsaids may be your best friends if recommended and not contra-indicated.