Tonsils stones are small, smelling balls, at the back of the throat. In fact, there are many trapped fruit particles in the area. This is added to the bacteria and the drips which pass to the zone after being in the nasal stratum. Though you will have to go through the process of removing them for complete cure, here is some prevention that works.
Do not eat prior to sleeping. Doing this, you make yourself vulnerable to sticky foods particles. These are the ones that accumulate in the area of tonsils. Wiping the tongue with a tongue cleaner facilitates the elimination of oral bacteria and hence it is a method that is highly talked about.
Gargle your mouth for as much as three minutes each day. This will ensure that the particles do not loom in the area. Dairy can be a big reason for tonsil stones. They should be taken well within limits.