Dear friend, welcome to HCM!
He needs to be evaluated in great detail.
He seems to have a silent chronic liver disease
and now worsened sue to infection.
Acute infection could be viral like dengue
Does he have free fluid(ascitis) in the abdomen?
It lookss serious and needs indoor treatment--may be an ICU
Difficult to advise treatment without all reports.
Go to a good tertiary centre with good facilities.
There are many differential diagnoses.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.