Can you tell me about the remedy for hand numbness due to carpal tunnel syndrome?

There are a few:: 1: wrist brace to keep the wrist from being flexed/extended. Initially used at night time. 2: steroid shots might be helpful, if the brace doesn't fully control symptoms, or in pregnancy, if severe. 3: when nothing helps ; the symptoms are severe enough to interfere in daily activities, then surgery is necessary to release the trapped nerve. See your orthopod for it. Good luck.