Canker Sore Vs Cold Sore: What's The Difference

Last updated 06/25
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This blog has been reviewed and approved by Dr Robert Lee, a dental professional of 35 years

Table Of Contents

Key Takeaways

  1. Canker sores are different from cold sores. 
  2. Canker sores are found inside the mouth and are not contagious. 
  3. Cold sores are found along the lips and are highly contagious, often looking like red fever blisters. 
  4. A dentist or doctor can diagnose the best treatment for both canker sores and cold sores and over the counter cream can be used to help both. 
  5. Maintaining good oral hygiene, with daily brushing and flossing, can help reduce the frequency of canker sore flare-ups and support healing for both types of sores.