What causes tonsil stones and how to get rid of them?

Normal: It may be normal to have some discharge or tonsillar exudate, that resides in crypts within the tonsils. They can be related to retained food particles that are degraded by saliva and bacteria, which can cause the foul odor.

Tonsilar stones: First, they are not bad. Some people tend to make more of those than others, but i don't recommend any particular treatment. There's really none available except for tonsillectomy, but i would not do it for this very reason.

Irrigate or surgery: Tonsil stones are actually lining of the crypts in the tonsil that build up. Larger crypts tend to predispose to this problem. Irrigation with a water pick, at a low pressure, may keep these areas free of the buildup, or tonsillectomy wi permanently resolve the problem if severe.