Thanks for writing in.
As your friend is having hepatic encephalopathy
with Heatitis C, there is decreased breakdown of nitrogeneous products in her liver
. Till some point is time the body adapts top such problems and tries to balance the nitrogen waste content in blood.
Af ter a while the blood nirtogen reaches a critical level. When this level is reached, the blood becomes toxic to the brain cells. This is known as hepatic encephalopathy.
The brain then starts behaving in a strange way and tremors (shaking) are seen.
There shakes should decreas with control in blood levels of nitrogen.
Hope this helps.