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Canker sores, or oral ulcers, are small lesions that appear inside the mouth, causing pain and discomfort. Stress can weaken the immune system and trigger inflammatory reactions within the mouth. This mechanism can increase the risk of developing canker sores or worsen existing conditions.


Canker sores, also known as oral ulcers, are small lesions that appear inside the mouth, causing discomfort and pain. While they are typically benign, canker sores can sometimes recur or become persistent issues. One of the contributing factors to the occurrence of canker sores is stress.

Stress is the body's response to pressure or changes, whether physical or emotional. When an individual experiences stress, the immune system can be affected, increasing the risk of various health problems. One often overlooked impact of stress is its influence on oral health.

Some studies indicate that stress plays a role in the development of canker sores. When an individual is stressed, the immune system may weaken, making them more susceptible to infections and inflammation. This can trigger the onset of canker sores or exacerbate existing conditions.


Mechanism of Stress and Canker Sores

Stress can lead to the release of stress hormones, such as cortisol, which can inhibit the immune system's response. This can make it harder for the body to fight infections or maintain normal balance, including within the mouth.

During periods of stress, individuals may tend to alter their eating habits or self-care routines. This can include unhealthy dietary patterns or neglecting oral hygiene, which, in turn, may increase the risk of canker sores.


Ways to Overcome Canker Sores

  1. Stress Management

Effectively managing stress is crucial. Practices such as breathing exercises, yoga, meditation, or other relaxation activities can help alleviate stress. Finding ways to reduce daily stressors can contribute to maintaining oral health.

  1. Regular Exercise

Engaging in regular physical activity can help reduce stress levels and improve overall health. Exercise can enhance blood circulation, supporting the healing process.

  1. Healthy Eating Habits

Consuming a balanced and nutritious diet can strengthen the immune system. Avoiding spicy or acidic foods that may exacerbate canker sores is advisable. Paying attention to vitamin and mineral intake, especially vitamin B and vitamin C, is essential.

  1. Use Oral Wound Dressing

Canker sore patches are a topical treatment used to help relieve pain, aid healing, and protect canker sores from additional irritation.

These patches typically provide a protective barrier on canker sores, preventing irritation from food, beverages, or speech.

One brand of oral wound dressing that can be used is Curatick. This patch forms a physical barrier for up to 4 hours on the canker sore and contains Vitamin E to facilitate natural healing.


If canker sores frequently occur or persist, it is essential to consult with a doctor or dentist. Professionals can assess the underlying causes and provide appropriate treatment recommendations.





  1. American Academy of Oral Medicine. (2017). Recurrent Aphthous Stomatitis.
  2. American Psychological Association. (2019). Stress Effects on the Body.
  3. Mayo Clinic. (2020). Canker Sore.
  4. National Institute of Dental and Craniofacial Research. (2020). Mouth and Teeth.


Oral Wound Care
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