Best Way To Get Rid Of Mouth Ulcers

Medically reviewed by
Dr. Vinita Tekchandani, Masters degree in Oral & Maxillofacial Pathology
Maharashtra Dental Council Registration No. (A-21799 MSDC)

Date : 06 May 2025

Mouth ulcers can make eating, drinking, speaking, and brushing your teeth uncomfortable. Most minor mouth ulcers heal on their own within one to two weeks, but the right care can help relieve pain and prevent further irritation.

The best way to get rid of mouth ulcers is to keep the area clean, avoid foods that irritate the sore, use a gentle saltwater rinse, and consider a suitable pharmacy treatment for pain relief. If ulcers keep coming back, are unusually painful, or do not heal, a dentist or doctor can help identify the cause and recommend appropriate treatment.

In this blog, you will learn about common mouth ulcer causes, home care options, treatments for pain relief, foods to avoid, and ways to reduce recurrence.

What Are Mouth Ulcers and Why Do They Hurt So Much?

Mouth ulcers are sores that develop on the soft tissues inside the mouth, including the inner cheeks, lips, tongue, and gums. A common type is the canker sore, also known as an aphthous ulcer.

These sores may have a white or yellowish centre with a red border. They can be painful because the protective lining of the mouth is damaged, leaving the affected tissue sensitive to food, drinks, and movement.

Most minor mouth ulcers are not serious and heal without specific treatment. However, not every mouth sore is a canker sore. Cold sores and other oral conditions can look different and may need different care.

Top 7 Common Causes of Mouth Ulcers You Might Be Overlooking

1. Stress and anxiety
2. Minor oral injuries (from biting the inside of your cheek or using a hard toothbrush)
3. Food sensitivities (like citrus fruits, spicy foods, or chocolate)
4. Vitamin deficiencies, especially B12, zinc, and iron
5. Hormonal changes (particularly in women during menstruation)
6. Medical conditions, such as celiac disease or inflammatory bowel disease
7. Poor oral hygiene or harsh dental products

Identifying the root cause of your mouth ulcers can go a long way in preventing them from recurring.

Are Mouth Ulcers a Sign of a Bigger Health Issue?

In most cases, mouth ulcers are harmless and clear up on their own. However, frequent or unusually large ulcers could be a symptom of an underlying health condition. Diseases like lupus, Crohn’s disease  may cause recurring mouth sores. If you notice ulcers lasting more than two weeks or accompanied by other symptoms like fever or swollen lymph nodes, consult a healthcare professional.

Home Remedies That Actually Work for Mouth Ulcer Relief

Natural remedies can be surprisingly effective in treating mild mouth ulcers. Here are a few:

• Saltwater rinse: Combine a teaspoon of salt with a glass of warm water and rinse your mouth to help ease inflammation and eliminate bacteria.
• Honey: Apply honey directly to the ulcer. Its antibacterial and anti-inflammatory properties can speed healing.
• Coconut oil: Acts as a natural pain reliever and antimicrobial agent.
• Aloe vera gel: Apply it directly to the affected area to aid healing and relieve irritation.
• Baking soda paste: Mix with a little water and apply to neutralize acids and reduce pain.

These remedies are gentle and safe for most people but should be used consistently for the best results.

Over-the-Counter Treatments: Fast Relief Options That Help

If home remedies aren’t offering sufficient relief, over-the-counter (OTC) treatments can work well.

• Antiseptic mouthwashes: Help keep the sore clean and prevent infection.
• Application of glycerine: Applying glycerine directly to the sore can soothe pain, keep the area moist, and support faster healing.
• Oral protective pastes: Form a barrier over the ulcer to reduce irritation from food and drink.
• Nutritional supplements: Taking vitamin B12 or iron supplements (if deficient) can prevent future occurrences.

Be sure to read the labels carefully and ask a pharmacist for advice if you’re uncertain about which product to choose.

When to See a Dentist About Persistent Mouth Ulcers

If your mouth ulcers are severe, last longer than two weeks, or recur frequently, it’s time to see a dentist or doctor. Persistent ulcers could be a sign of:

• Nutritional deficiencies
• Autoimmune diseases
• Allergies
• Oral cancer (rare, but should be ruled out)

A professional can provide targeted treatment and identify any underlying conditions that might be contributing to your mouth ulcers.

Foods to Avoid If You Have Mouth Ulcers

What you eat can significantly affect your healing time. Avoid:

• Citrus fruits (lemons, oranges)
• Spicy foods (chili, hot sauces)
• Salty snacks (chips, salted nuts)
• Acidic foods (tomatoes, vinegar)
• Hard or rough-textured foods (toast, crackers)

Opt for soft, bland foods like yogurt, mashed potatoes, smoothies, and soups while healing.

How to Prevent Mouth Ulcers from Coming Back

Prevention is just as important as treatment. Here are some strategies to reduce your risk:

• Manage stress through meditation or exercise
• Maintain good oral hygiene
• Use a soft-bristled toothbrush
• Avoid known food triggers
• Get regular dental check-ups
• Stay hydrated and eat a balanced diet

Best Oral Hygiene Practices to Keep Mouth Ulcers Away

Good oral hygiene helps maintain the health of your mouth and reduces the chances of developing ulcers:

• Brush twice daily with a soft toothbrush
• Use non-irritating toothpaste (avoid sodium lauryl sulfate)
• Floss gently every day
• Rinse with an alcohol-free mouthwash
• Replace your toothbrush every 3 months or after being sick

Quick Summary: Best Way To Get Rid Of Mouth Ulcers Effectively

The best way to get rid of mouth ulcers involves a combination of home care, OTC treatments, and preventive habits. Start by identifying the cause, use soothing remedies like honey or saltwater rinses, and avoid irritating foods. For persistent issues, consult a dental professional. With the right approach, you can heal faster and reduce the chances of future flare-ups.

Frequently Asked Questions

What is the fastest way to heal a mouth ulcer?

There is no guaranteed instant cure. Gentle saltwater rinses, avoiding irritating foods, maintaining oral hygiene, and using a suitable pharmacy treatment may relieve discomfort while the ulcer heals. Most minor ulcers clear within one to two weeks.

How long do mouth ulcers usually last?

Most minor mouth ulcers heal within one to two weeks. Larger, recurring, or unusually painful ulcers may take longer and should be assessed by a healthcare professional.

Are mouth ulcers contagious?

Typical canker sores are not contagious. However, other conditions that cause sores around or inside the mouth, including cold sores, may be contagious. If you are unsure what kind of sore you have, seek professional advice.

Can stress cause mouth ulcers?

Stress may be a trigger for some people, but it is not the only cause. Injury, individual sensitivities, nutritional deficiencies, and certain medical conditions may also contribute.

Does honey help heal mouth ulcers?

Honey is sometimes used as a home remedy, but it should not be presented as a guaranteed cure. If you need relief, consider gentle oral care and ask a pharmacist about an appropriate ulcer treatment.