got them for a couple of years, and then they went away. Kind of weird but happy to say I'm no longer a carrier. My theory is that bacteria set up a colony in the pocket of your tonsil. Anytime food gets stuck in there, they have a feast and grow out. A cycle is born between clearing the loth and feeding the resident colonies. Eventually, the bacterial infection is eliminated, leading to a clear tonsil. I would bet that rinsing with mouthwash just after clearing out a loth would expedite things.
When I was getting them, I found that eating bread and/or pasta was a sure way to build 'em up. You can generally rub them out with the backend of a toothbrush. If not cleared, they can get pretty huge. The feeling of large ones stuck back there make you want to hurl.