Mouth Ulcers Causes and Treatment — How to Heal Faster

Mouth ulcers, also called canker sores, are small, painful sores that form inside the mouth. They are not contagious and usually heal on their own within 1 to 2 weeks. However, frequent or large ulcers may need treatment. Studies show that up to 25% of adults experience recurrent mouth ulcers, making them one of the most common oral health problems.

In Bhubaneswar, many patients suffer from mouth ulcers triggered by stress, spicy food, nutritional deficiencies, or minor injuries from brushing. The local diet, which often includes spicy and acidic foods, can contribute to ulcer formation. While most ulcers are harmless, they can be extremely painful and interfere with eating, drinking, and speaking. Understanding the cause is key to preventing recurrent ulcers.

At YourDentist Laser Dental Clinic in Bhubaneswar, Dr. Arpita Dash evaluates mouth ulcers and provides treatment for persistent or severe cases, including laser therapy that can provide instant pain relief.

What are mouth ulcers?

Mouth ulcers are round or oval sores with a white or yellow centre and a red border. They appear on the inside of the lips, cheeks, tongue, gums, or soft palate.

Common causes of mouth ulcers

Minor injury

Accidentally biting your cheek, brushing too hard, or sharp tooth surfaces can cause ulcers.

Stress

Stress weakens the immune system and can trigger ulcers.

Nutritional deficiencies

Low levels of iron, folic acid, vitamin B12, or zinc can cause recurrent ulcers.

Hormonal changes

Some women get ulcers during menstruation due to hormonal shifts.

Food triggers

Spicy, acidic, or salty foods can irritate the mouth and trigger ulcers in some people.

Medical conditions

• Celiac disease
• Inflammatory bowel disease
• Behçet’s disease
• Immune system disorders

Medications

Some medicines, including painkillers and beta-blockers, can cause mouth ulcers as a side effect.

Types of mouth ulcers

Type	Description	Healing time
Minor ulcers	Small, round, painful	7 to 10 days
Major ulcers	Larger, deeper, may scar	2 to 6 weeks
Herpetiform ulcers	Clusters of tiny ulcers	1 to 2 weeks

Home remedies for mouth ulcers

Salt water rinse

Rinse with warm salt water 3 to 4 times a day. This reduces inflammation and speeds healing.

Baking soda paste

Apply a small amount of baking soda paste to the ulcer to neutralise acid and reduce pain.

Honey

Honey has antibacterial properties and can soothe ulcers. Apply a small amount directly.

Coconut oil

Apply coconut oil to the ulcer to reduce irritation and promote healing.

Avoid spicy and acidic foods

Avoid foods that can irritate the ulcer, such as chillies, citrus, and tomatoes.

Stay hydrated

Drink plenty of water and avoid very hot drinks.

Use over-the-counter gels

Medicated ulcer gels can reduce pain and protect the sore.

When to see a dentist

See Dr. Arpita Dash if:

• The ulcer lasts more than 2 weeks
• Ulcers are very large or frequent
• Pain is severe and affects eating
• You have fever or swollen lymph nodes
• Ulcers appear after starting a new medication
• You have other symptoms like weight loss or fatigue

Professional treatments for mouth ulcers

Topical steroids

Steroid gels or ointments reduce inflammation and speed healing.

Antibacterial mouthwash

Chlorhexidine mouthwash can reduce bacteria and help ulcers heal.

Pain relief

Topical anaesthetic gels numb the area for temporary relief.

Laser treatment

In some cases, laser therapy can reduce pain and speed healing of stubborn ulcers.

Supplements

If deficiencies are found, supplements for iron, B12, folic acid, or zinc may be recommended.

Preventing mouth ulcers

• Manage stress through exercise, meditation, or relaxation techniques
• Eat a balanced diet rich in iron, B12, folic acid, and zinc
• Avoid foods that trigger ulcers
• Use a soft-bristle toothbrush
• Brush gently
• Get enough sleep
• Treat underlying health conditions
• Avoid very hot or hard foods that can injure the mouth
• Stay hydrated throughout the day

Mouth ulcers vs cold sores: what is the difference?

Many people confuse mouth ulcers with cold sores, but they are different conditions:

Feature	Mouth ulcers (canker sores)	Cold sores (herpes)
Location	Inside the mouth	Outside the mouth (lips)
Contagious	No	Yes
Cause	Stress, injury, deficiency	Herpes simplex virus
Appearance	White or yellow centre, red border	Fluid-filled blisters
Healing	7 to 14 days	7 to 10 days
Treatment	Gels, laser, supplements	Antiviral creams

If you are unsure whether you have a mouth ulcer or a cold sore, Dr. Dash can diagnose it during a consultation.

Cost of mouth ulcer treatment in Bhubaneswar

Treatment	Cost range (INR)
Consultation	₹300 - ₹800
Medicated gel	₹100 - ₹400
Laser ulcer treatment	₹1,000 - ₹3,000

Ulcer healing timeline and what to do

Day	What to expect	What to do
Day 1 to 2	Pain is strongest, ulcer forms	Salt water rinse, avoid spicy food
Day 3 to 5	Pain decreases, healing begins	Continue rinses, apply honey
Day 6 to 8	Ulcer shrinks, less pain	Soft diet, stay hydrated
Day 9 to 14	Ulcer heals completely	Resume normal diet
If not healed by day 14	May need professional treatment	Visit Dr. Dash for evaluation

Most ulcers follow this predictable healing timeline. If your ulcer does not follow this pattern, professional evaluation is recommended.

Foods that trigger and foods that heal ulcers

Category	Foods to avoid	Foods that help
Spicy	Chilli, hot peppers, spicy curries	Mild dal, rice, curd
Acidic	Citrus fruits, tomatoes, vinegar	Banana, coconut water, milk
Hard/crunchy	Chips, nuts, toast	Smoothies, soup, mashed potato
Salty	Salted snacks, pickles	Fresh vegetables, fruits
Hot	Very hot beverages and soups	Lukewarm drinks, water
Healing foods	N/A	Honey, coconut oil, yoghurt, leafy greens

Adjusting your diet during an ulcer outbreak can significantly reduce pain and speed up healing.

Why choose YourDentist for mouth ulcer treatment

• Accurate diagnosis of ulcer cause.
• Targeted treatment for persistent ulcers.
• Laser treatment options for faster healing.
• Nutritional deficiency assessment.
• Experienced dentist, Dr. Arpita Dash.

Related dental services at YourDentist

• Oral prophylaxis — oral health maintenance
• Laser dentistry — laser ulcer treatment
• Aesthetic dentistry — gum and oral tissue care
• Dental restoration — repair sharp tooth surfaces

Frequently asked questions

Are mouth ulcers contagious? No, canker sores are not contagious. Cold sores caused by herpes virus are different and can be contagious.

How long do mouth ulcers last? Most minor ulcers heal within 7 to 10 days. Major ulcers may take 2 to 6 weeks.

Can mouth ulcers be a sign of something serious? Frequent or persistent ulcers can indicate nutritional deficiencies, immune problems, or other health conditions.

What foods cause mouth ulcers? Spicy, acidic, and salty foods can trigger ulcers in some people.

When should I see a dentist for a mouth ulcer? If the ulcer lasts more than 2 weeks, is very painful, or keeps coming back, see a dentist.

Can stress cause mouth ulcers? Yes, stress is one of the most common triggers for mouth ulcers. Managing stress through exercise, sleep, and relaxation can help reduce frequency.

Can vitamin deficiency cause mouth ulcers? Yes, deficiencies in iron, vitamin B12, folic acid, or zinc are common causes of recurrent ulcers. A blood test can identify deficiencies and supplements can help.

Does laser treatment help mouth ulcers? Yes, laser therapy can provide immediate pain relief and speed up healing of stubborn ulcers. It is a quick, painless procedure available at YourDentist.

Are mouth ulcers a sign of oral cancer? Most mouth ulcers are harmless. However, an ulcer that does not heal after 2 to 3 weeks should be examined to rule out oral cancer. Dr. Dash includes oral cancer screening during ulcer evaluations.

Can I prevent mouth ulcers completely? While you cannot prevent all ulcers, you can reduce their frequency by maintaining good nutrition, managing stress, using a soft toothbrush, avoiding trigger foods, and treating underlying health conditions. Patients who get frequent ulcers should consult Dr. Dash for a comprehensive evaluation.

Is laser treatment for mouth ulcers painful? No, laser ulcer treatment is quick and painless. Most patients feel immediate pain relief after the procedure. The laser sterilises the ulcer and promotes faster healing, often reducing healing time from 10 days to 3 to 4 days.

Can mouth ulcers be caused by braces or sharp teeth? Yes, braces, broken teeth, or sharp fillings can cause ulcers by irritating the soft tissues of the mouth. Dr. Dash can smooth sharp edges, adjust braces, or apply orthodontic wax to prevent irritation. If you frequently get ulcers in the same spot, a sharp tooth surface may be the cause.

For mouth ulcer treatment in Bhubaneswar, visit YourDentist Laser Dental Clinic. Call +91 7064719630 or message us on WhatsApp.