if your skin is turning yellow then this is a form of autointoxication: your biles normal channel through the digestive system (the bile-ducts) have become obstructed, and finds its way through the body via other means, and in this case into your skin and other parts of the body.
This can also result in pruritus (severe itchy skin) as the bile irritates the peripheral nerves of the whole body.
Whatever anyone may tell you, Gallstones
(as with any other stones within the body) are formed by malformed secretions and excretions due mainly to a long-standing faulty diet or/and a deficiency within that diet.
It is true that more bile will help to dissolve and eradicate the stones, but this is only AFTER the secretions/excretions of the body have become normalized thru proper diet.
In this scenario eating more fats/oils to stimulate the production of more bile may only serve to exacerbate the problem with already blocked ducts and further add to the jaundice.
There are several options in ridding your body of Gallstones
that I have heard of over the years.
#1. High amounts of supplementary Vitamin C dissolved in water taken to the bowel tolerance level on a daily basis, and then flush with copious amounts of water.
can be caused by a magnesium deficiency.
#3. Take two or more tablespoons of Apple Cider Vinegar with freshly extracted apple-juice per day. This has been reported to dissolve even the largest of gallstones.
Personally I would firstly opt for #3 and then #1.
Surgery is a last-resort option, and sometimes the only option if the gallstones are too big (larger than an olive).
Once they have been dissolved/removed you can keep them from reforming with a plant-based diet.
I wish you well.