My sister has liver problem and her skin is becoming yellow is there any medication for this?

See doctor: If your sisters skin is turning yellow it sounds like she is very sick and needs to seen and treated.

Jaundice: Seek medical attention today. Some causes may resolve on there own ( sometimes hepatitis), some require removal of blockage (like in gallbladder blockage). or surgery or stent placement. Sometimes it is from breakdown of red blood cells and some of these can be stopped by avoiding certain situations, like G6PD. Needs to bee evaluated in a ER/ hospital or with doc.