Tonsillolith is a benign condition. Sometimes with antiseptic gargle it falls off from tonsil. There is nothing to be feared much about ot. If it stays back for long, bothers you a lot there are small Surgical procedures to get rid of it. Its not necessarily tonsil removal. Cryptolysis can be done, which is less painful, less chance of bleeding with coblation.

These are called Tonsilloliths. Usually need to be operated-Tonsillectomy