Lifestyle and home remedies

By Mayo Clinic Staff

To help relieve pain and speed healing, consider these tips:

  • Rinse your mouth. Use salt water or baking soda rinse (dissolve 1 teaspoon of baking soda in 1/2 cup warm water).
  • Dab a small amount of milk of magnesia on your canker sore a few times a day.
  • Avoid abrasive, acidic or spicy foods that can cause further irritation and pain.
  • Apply ice to your canker sores by allowing ice chips to slowly dissolve over the sores.
  • Brush your teeth gently, using a soft brush and foaming-agent-free toothpaste such as Biotene or Sensodyne ProNamel.
March 19, 2015

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