Hello
Welcome to health care magic
It depends upon what is cause of his
jaundice.
If it is infectious
viral hepatitis,that caused by hepatitisA or E virus resolves by themselves in 2-3 weeks.
If it is
Hepatitis B ,C or D ,it is chronic infection.
Has his IgM HBs Ag levels been checked?If no,you need to go for it.
It may require chronic treatment with
interferon and Ribavarin drug.
It can be because of blood disorders.
I advice you to also get his blood smear and blood haemogram done.
If anything found abnormal,further follow up can be done by a haematogist.
Is his CT abdo done?CT and MRI if normal rules out obstructive cause of jaundice.
I advice him to refrain from unprotected sex,
blood transfusion,sharing of needles.
Hope I answered your query.