Start cooking your food. The Kidney's are wind (circulatory organs) and must be kept warm to function properly. Raw food may not be helpful. A "cyst" among other things is
composed of, a lump of "phlegm" it is the body's equivalent to ice. By nature phlegm is cool (cold) and the taste is sweet. Start with some simple hot broths with a pinch of cayenne. Eliminate all uncooked foods.Basically you are going to attempt to disolve or melt the cyst. Good luck.
Jeff