Essential Tremors. What i have to do?

Tremors while writing, even can't draw straight or circular line. Difficult to sign. Every time signatures vary. Tremors increase when in hurry, anxiety, curiosity. Sometimes, it is not possible to write as tremors increase rapidly. Though I do my other works almost normally but for last 3-4 years I feel weekends in my right h and/arm while holding a filled glass in my right hand for a while. The problem is in right hand only. I am a diabetic patient since last 20 years and insulin supported diabetic for last 11 years. Diabetes and tremors started almost at the same time. In the beginning tremors were not noticeable but gradually and slowly increased with time. At beginning when I realised tremors, I consulted a neuro physician, he told that there is no remedy for this. Can any doctor tell me if the tremors are curable and for that what I have to do?