No I havent taken the antifungal you mentioned but then I am not heavily into antifungals, they never really worked for me just made my body more toxic than it already was, putting me under further strain.
I do believe in supporting my immune system in as many ways as possible, clearing and cleansing the organs by means of nutritious diet and supplements. Like you I dont specifically take any one supplement to support one area, I use a balance. My most important one is for liver support - it does support Gilberts Syndrome and the detox pathway that is involved but you have to be careful with liver support and not just throw a load of supplements in there as supporting one pathway can then overload the others. Best off taking a balance. There are supplements out there that are specifically geared towards Gilberts Syndrome but like I said I prefer an all round support.