What medicine should i take for my hands numbness?

Varies: Most common cause of hand numbness is carpal tunnel syndrome due to nerve compression at inside wrist. There are, of course other reasons. Assuming the above, might benefit from vit b-6 100 mg twice daily, but larger amounts could be toxic. An anti-inflammatory such as Motrin or aleve (naproxen) might help. Best to see your doctor and get more precise idea of causation.