Oral Saline Solution / Mouth Rinse Recipe

woman using mouth wash
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  • Prep Time
    2 min
  • Cook Time
    10 min
  • Total Time
    12 min
  • Yield
    8 ounces Saline Solution

Oral saline solution / mouth rinse is used to cleanse the mouth when you have a canker sore, a soft tissue laceration, are healing after oral surgery, and so on.

Rinsing with warm salt water two to three times a day may help to relieve a toothache because salt water works as an antiseptic to gently remove bacteria from the infected area and reduce the alkalinity in the mouth.

Saline solution is easily prepared in your own home and only requires two to three ingredients that almost everyone has on hand.

A fresh batch should be made every time you use this rinse. It's such an easy thing to do and takes all of 12 minutes to prepare.


  • 8 ounces warm water
  • 1 teaspoon salt
  • 2 teaspoons baking soda (optional)


  1. Start by bringing 8 ounces warm water to a rolling boil, for 10 minutes. After boiling, let the water stand until it is cool enough to rinse with, but warm enough to completely dissolve the next two ingredients.
  2. When cooled accordingly, place 1 teaspoon salt in the water while gently stirring until the salt has been completely dissolved.
  3. As an option, dissolve the 2 teaspoons baking soda in the water along with the salt.
  1. Use the saline solution as directed, and discard any leftover solution.

How to Use an Oral Saline Solution

Unless otherwise directed by your dentist or physician, swish the solution in your mouth for 30 seconds, then spit the solution out. Don't swallow it. Nothing will happen to you if you do swallow it, but it's not necessary.

How to Make an Oral Baking Soda Paste

Create a paste by mixing baking soda with small drops of water until a thick consistency results. Use this paste to cover the canker sores, which will help relieve pain. Repeat as often as necessary.

More Remedies for Canker Sores

Here are other treatment methods for canker sores. See this article for detailed information:

  • Hydrogen peroxide solution
  • Milk of Magnesia
  • Liquid antihistamine
  • Over-the-counter oral care products and mouth rinse
  • Prescribed oral medications
  • Corticoid steroids

Coping with Mouth Sores Caused by Cancer Treatment

Lynne Eldridge, M.D.

 says, "Since chemotherapy attacks rapidly dividing cells, it can also affect the rapidly dividing cells lining the mouth. Chemotherapy may also affect the production of saliva, and alter the normal bacteria present in the mouth, making infections more likely."

She advises to eat a good diet, high in vitamins and minerals.

Avoid spicy, salty or high-citrus foods. Limit alcohol intake, and avoid foods that are extremely cold or extremely hot. Drink plenty of water and avoid foods that are sharp like crackers, toast, and dry cereals.

Food in gravies and sauces are a smart choice. Other good food choices are mashed potatoes, cooked cereals, applesauce, cottage cheese, pudding, yogurt, smoothies (without citrus), soups, Jell-O, baby food, or food puréed in the blender.

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