The cause of the bartholin cyst should be corrected. One ounce of prevention is worth a pound of cure.
According to dr. jorge flechas, dr. david brownstein, and dr. arthur miller, cysts and fibroids anywhere in the body are caused by Iodine deficiency.
We have MANY testimonials for cysts in the breast (fibrocystic Breast Disease), cysts in the ovaries (PCOS), cysts & fibroids in the uterus , and cysts anywhere in the body. http://tinyurl.com/iodine-testimonials
Iodine should only be used as a prevention. I don't have any testimonials for Iodine being applied to this kind of cyst, so I don't know if it would work on this kind of cyst.