thanks for writing in.
The cause and extent of the liver
enlargement needs to be ascertained. USG will help to scertain the extent and nature of the liver function. Blood tests will ascertain the degree of liver dysfunction.
Liver fuction tests ,viral markers , coagulation profile,CBC with blood smear ,stool and urine examination needs to be done to find the exact cause. Till the diagnosis is made you need to take complete bed rest