Many: Applying licorice root is proven to relieve pain and help canker sores to heal more quickly. There are lozenges made of licorice available. Other common home remedies include apple cider vinegar and baking soda. For reports on many home remedies from those who have tried them see http://www.earthclinic.com/mobile/cures/canker_sores.html
Answered 8/8/2014
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