What Natural Treatments Can Help Severe Liver Enzyme Elevation

Some general advice/direction would be greatly appreciated...

My fiance has chronic liver enzyme elevation which results in symptoms of severe recurring episodes of unrelenting malaise, fatigue, fever, poor appetite, abdominal pains, diarrhea, nausea and vomiting.

His Doctor is perpetually unhelpful and hesitant to do anything other than prescribe him medication for his nausea, medication that doesn't help anywhere near as much as it should. The Doctor keeps stating that he will refer my partner to a specialist eventually but that we should not expect any outside assistance for at least the next 5-6months.

It is so frustrating to be made to stand by helplessly and watch my partner be afflicted with a medical condition that unceasingly intensifies with each passing day. His anti-nausea medication is so strong, it is actually prescribed to those undergoing chemotherapy but even that doesn't alleviate his affliction.

Can someone please help by suggesting a natural remedy to treat the above-mentioned symptoms, plus if there is anything that he could utilize to assist with the management and treatment/alleviation of his actual liver enzyme elevation as well please?

Thank you.

Reanna