Depends. Agree with dr. Azimi. Many things can cause tremor (drug, drug side effects, benign tremor, parkinson...). Successful treatment depends on the cause. Please see your doctor to figure out the cause so you can be treated accordingly.
Depends on cause. Might want your family doctor to look into it, and decide if you need a neurologist. It can be caused by many things, and the treatment depends on the cause. If many family members have it too, it can be an 'essential tremor, ' and while i is not curable, meds can reduce symptoms.
Depends on the cause. Some time Propranolol can help. See your doctor.