To clarify, "idiopathic" means having no known cause, and therefore not worrisome.
Since you mentioned 'hand tremours", does this mean you have tremors in both of your hands rather than just one? Do your tremors occur at rest, or while you're active?
In any event, Dr. Sharma is right--you should see a neurologist for assessment if you can. They will be able to determine the origin of your tremors if there is one, and prescribe medication to lessen the severity if it's interfering with your everyday life.
Hello dear and welcome to the medhelp forum. Tremors need to be classified as static or the ones which occur with activity in hands, or postural. They need to beassessed clinically and supported with blood investigations, CT, MRI brain and EMG whether they are idiopatic or essential, related with alcohol abuse, excess thyroid hormone, liver failure, any trauma to brain, certain medications like amphetamines and steroids, etc. management would differ for each type of tremor and hence I cannot prescribe you one drug which may help without clinical evaluation. I suggest that you consult a neurologist for the same. Wishing you all the best.