I have my first tonsil stone. small mouth, big gag reflex, and i've tried everything. will it fall out on its own? how long will it take?

Soon: If you are referring to the whitish material that accumulates in tonsillar crevices, this is what I call tonsillar dandruff. You can gargle with salt water and almost any other mouthwash and this will loosen these accumulations of debris and they can be spit out. These particles will smell badly, because they also are composed of skin cells and bacteria. Keep trying and they will come out .