To get rid off polyps is the same as getting rid off gallstones.
In the lower part of FAQ at the top of this page is a thread under EXPERIENCE.
A good general information website about flushes is Julia Chang's http://www.sensiblehealth.com You don't have to use her herbs but it is nicely explained. Most people here start with the Dr.Clark one which you can find when you click on cleanses at the top of the page. The main ingredients you need are virgin olive oil, grapefruit to make juice and Epsom Salts (magnesium sulfate).
Doctors don't believe in any of this so you are on your own, but you can use the support system here.
It is important not to part with your gallbladder, it is the storage organ for bile that comes from the liver and you need it for digestion, especially in the small intestines.
A good explanation about the workings http://www.ener-chi.com under healthinfo read liver/gallbladder/intestinal diseases. If you are interested in one of his books, the most general infomation for cleanses, eating an living is Timeless Secrets for Health and Rejuvenation .