How to Prepare a Saltwater Rinse. Making a saltwater mouth rinse is easy: Put a teaspoon of salt into an eight-ounce glass of warm water. One teaspoon of baking soda can also be added if desired.

If this happens to you, rinse your mouth three times daily with a mixture of 1 cup warm water, 1/4 teaspoon baking soda, and 1/8 teaspoon salt, followed by a rinse with plain water.

You can make baking soda mouthwash by adding 1/2 teaspoon (2 g) of baking soda to half a glass (120 mL) of warm water. Rinse your mouth with this mixture once a day until the canker sore heals ...

Nasal rinse preparations containing baking soda ... or lukewarm distilled water. ... gently squeeze it to release about 4 oz of the solution into the nose while breathing through the mouth.

Simply, mix four tablespoons of baking soda to one quart of warm water. Pour this into a clean spray bottle to spray directly onto the toys. Be sure to rinse thoroughly and dry with a paper towel.