You may need a Beta Blocker which will help in stopping your hand tremor, it maybe also essential tremor, or something else have you try to put your hands in your feet sitting? if you do and there is no tremor, that is great is there is a tremor, it may not be essential tremor, it maybe something else, so I may suggest that you visit an specialist in movement disorders, (a neurologist) which can check you out and tell you what is going on