How to Heal Canker Sores with the Right Care and Treatment

Does it feel like a sharp sting every time you eat or drink? Although small, canker sores can make simple activities such as talking, chewing, and brushing your teeth uncomfortable. That’s why many people look for how to heal canker sores quickly so the sores can improve and daily activities become more comfortable.

The good news is that most canker sores heal on their own within 7–14 days. However, proper care can reduce pain, speed up recovery, and lower the chance of future outbreaks. If a sore lasts longer than expected or keeps coming back, it may be a sign of an underlying health condition that should be evaluated by a healthcare professional.

What Causes Canker Sores?

Canker sores, also known as aphthous stomatitis, can develop for several reasons. Understanding the possible causes can help you reduce the risk of future episodes.

Common causes include:

• Minor injuries inside the mouth caused by accidentally biting your cheek or irritation from braces or sharp teeth.
• Deficiencies in vitamin B12, iron, or folate.
• Stress and lack of sleep.
• Eating foods that are very spicy, acidic, or hot.
• Hormonal changes.
• Certain immune system disorders.

According to the Ministry of Health of the Republic of Indonesia (Kemenkes RI), maintaining good oral hygiene and eating a balanced diet are important for oral health. In addition, Mayo Clinic notes that minor mouth injuries and nutritional deficiencies are common triggers for canker sores.

Types of Canker Sores

Canker sores are generally divided into three types:

• Minor canker sores, the most common type. They are small and usually heal within one to two weeks without leaving scars.
• Major canker sores, which are larger, more painful, and may take several weeks to heal.
• Herpetiform canker sores, which appear as clusters of tiny ulcers that may merge into larger sores.

Can Canker Sores Heal on Their Own?

Yes. Most mild canker sores heal naturally within 7–14 days without special treatment. Even so, keeping your mouth clean, avoiding foods that may irritate the sore, and following simple home care measures can help speed up the healing process.

How to Heal Canker Sores

The following steps can help relieve discomfort and promote faster healing.

1. Rinse with Salt Water

Mix half a teaspoon of salt into a glass of warm water and rinse your mouth for about 30 seconds. Do this two to three times a day, and do not swallow the salt water.

2. Apply a Topical Oral Gel

Oral gels containing benzocaine or hyaluronic acid may help reduce pain while protecting the sore from further irritation. Follow the instructions on the product label, and ask a pharmacist or healthcare provider if you’re unsure which product is right for you.

3. Stay Well Hydrated

Drink plenty of water throughout the day. A dry mouth can make canker sores feel more painful and may slow the healing process.

4. Choose Soft, Gentle Foods

Eat soft foods such as porridge, soup, yogurt, or mashed vegetables while the sore heals. Avoid spicy, acidic, or very hot foods because they can worsen irritation.

5. Get Enough Vitamins and Minerals

If canker sores occur frequently, make sure your diet provides enough vitamin B12, vitamin C, folate, and iron. Supplements may also be recommended by a healthcare professional if needed.

When Should You See a Doctor?

Seek medical attention if you experience:

• A canker sore that lasts longer than two weeks.
• Very large sores or multiple sores at the same time.
• Severe pain that makes eating or drinking difficult.
• A fever or swollen lymph nodes.
• Frequent canker sores with no obvious cause.

A healthcare provider can determine whether the sores are related to an infection, a nutritional deficiency, or another medical condition that requires treatment.

Disclaimer: This article is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment.

Read Also : Natural Remedies for Canker Sores You Can Try at Home

Conclusion

Knowing how to heal canker sores can help you recover more comfortably. Maintaining good oral hygiene, rinsing with salt water, staying hydrated, eating soft foods, and getting enough essential nutrients can all support the healing process.

If you’ve tried these methods but your canker sores continue to return or do not heal, don’t ignore the problem. Review your diet, sleep habits, and oral hygiene, and consult a healthcare professional to identify the underlying cause and receive appropriate treatment.