Hi, I had cyst a long long time ago- 2 children and thirty years later I've done research due to my malignant melanoma- stge lllb, in lymph nodes, but now gone due to natural remedies and nutritional application.
The red clover suggestion is good because it purifies the blood- I also used this for my cancer. It's theraputic actions among others are: Deobstruent (removes alimentary and other body obstructions); Alterative ( alters the existing and excretory processes and gradually restores normal body functions.); a mild stimulant (herb that increases functional activity and energy in the body.); Depurant (herb that clean or purifies the blood by promoting eliminative functions); and a Detergent (herb that is cleansing to wounds, ulcers, etc. or the skin itself) among other beneficial properties. * School of Natural Healing" by Dr. John R. Christopher, 25th anniversary edition.
The horsetail provides silica which helps strenghten connective tissues. It strengthens Mesenchymal cells-those derived from embryonic mesoderm; practically, those in a tissue that give it structure and form. It's also used as a diuretic. (increasing the secretion and flow of urine)** "Medicinal Plants of the Pacific West", Michael Moore-herbalist
I would also use an enzyme formula, mainly Protease to help the digestion of the cysts. I like the enzymes I get at the http://www.OurHealthCoop.com they are good and affordable. They have a formula which has all the Protease, Amylase and Lipase.
hope this helps, best to you