How about spitting?

Saliva is a fluid that has therapeutic value. It kills pathogens, disinfects, fights tooth decay and preserves the proper healthy smell of the mouth. The saliva's enzymes also initiate digestion. Since it has so many good properties, we should not spit our saliva out. Always swallow it! You can also accumulate saliva. Then, perform a "mouth bath" with the accumulated saliva and only swallow after that.

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