Mouth ulcers, commonly called canker sores, are small but painful lesions that develop on the soft tissues inside the mouth. They may appear on the tongue, inner cheeks, lips, or near the gums. Even though they are usually harmless, mouth ulcers can make eating, drinking, and speaking uncomfortable.
Most mouth ulcers heal on their own within 7 to 10 days. However, many people look for ways to relieve the pain and speed up healing. Several natural remedies and simple lifestyle changes can help reduce irritation and support recovery.
In this guide, we will explain common causes of mouth ulcers, natural treatments that may help them heal faster, and when it may be necessary to see a dentist.
What Causes Mouth Ulcers?
Mouth ulcers can develop for many different reasons. In many cases, they occur after irritation or minor injury inside the mouth.
Common causes include:
- stress or anxiety
- minor mouth injuries such as biting the cheek or brushing too aggressively
- vitamin deficiencies, especially vitamin B12, iron, or folic acid
- hormonal changes
- sensitivity to acidic or spicy foods
- poor oral hygiene
- certain underlying health conditions such as celiac disease or Crohn’s disease
Understanding the cause can help determine the most effective treatment.
Natural Remedies That May Help Mouth Ulcers Heal Faster
Natural remedies are often the first option people try when dealing with mouth ulcers. These methods can help reduce inflammation and discomfort while the ulcer heals.
Saltwater Rinse
A saltwater rinse is one of the most common home remedies for mouth ulcers. Salt helps reduce bacteria and may help soothe irritated tissue.
To use this remedy, mix one teaspoon of salt in a glass of warm water. Rinse your mouth for about 30 seconds and then spit it out. This can be repeated several times per day.
Honey
Honey contains natural antimicrobial and anti inflammatory properties that may support healing.
Apply a small amount of raw honey directly onto the ulcer two to three times per day. This may help protect the area and reduce irritation.
Aloe Vera
Aloe vera is known for its soothing properties and may help calm inflamed tissue.
Apply a small amount of aloe vera gel directly to the ulcer and allow it to sit for a few minutes before rinsing your mouth.
Coconut Oil
Coconut oil has natural antibacterial properties and may help reduce irritation.
Use a clean finger or cotton swab to apply a small amount of coconut oil to the affected area.
Baking Soda Paste
Baking soda may help neutralize acids in the mouth and reduce inflammation.
Mix a small amount of baking soda with water to create a paste. Apply the paste to the ulcer and rinse your mouth after a few minutes.
Can Mouth Ulcers Heal Overnight?
Many people search for ways to get rid of mouth ulcers overnight. While complete healing rarely happens that quickly, certain steps may reduce discomfort and swelling within a day.
Some helpful strategies include:
- applying ice to numb the area
- using over the counter oral gels before bed
- avoiding spicy or acidic foods
- drinking soothing herbal teas such as chamomile
These methods may help reduce irritation while the ulcer continues healing.
Remedies for Tongue Ulcers
Ulcers that develop on the tongue can be particularly uncomfortable because of constant movement and contact with food.
To reduce irritation:
- avoid very hot or spicy foods
- use a soft bristled toothbrush
- rinse with saltwater regularly
- apply soothing remedies such as honey or aloe vera
Keeping the mouth clean and avoiding irritating foods can help speed recovery.
What to Eat and Drink When You Have Mouth Ulcers
Diet can influence how quickly mouth ulcers heal. Soft, mild foods are usually easier to tolerate while your mouth is sore.
Foods That May Help
Some foods are less likely to irritate the mouth and may provide nutrients that support healing.
Good options include:
- bananas
- yogurt
- oatmeal
- scrambled eggs
- mashed potatoes
- applesauce
- soft cooked vegetables
- smoothies without citrus
Drinks That May Help
Staying hydrated is important when healing from mouth ulcers.
Helpful drink options include:
- plain cold water
- coconut water
- chamomile or herbal tea
- milk
- aloe vera juice
Avoid acidic drinks such as orange juice, lemonade, or soda, as these can irritate the sore.
When to See a Dentist for Mouth Ulcers
Most mouth ulcers heal within one to two weeks. However, it is important to seek professional care if:
- the ulcer lasts longer than two weeks
- ulcers occur frequently
- the sore becomes unusually large or painful
- the ulcer is accompanied by fever or swollen lymph nodes
Persistent mouth ulcers may indicate an underlying health issue that requires evaluation.
Preventing Mouth Ulcers
Although mouth ulcers are common, certain habits may help reduce how often they occur.
Helpful prevention strategies include:
- maintaining good oral hygiene
- using a soft bristled toothbrush
- avoiding foods that trigger irritation
- managing stress levels
- ensuring adequate intake of vitamins such as B12, iron, and folate
Regular dental checkups can also help identify potential oral health problems early.
Final Thoughts
Mouth ulcers are common and usually harmless, but they can cause significant discomfort. Natural remedies such as saltwater rinses, honey, aloe vera, and coconut oil may help reduce irritation while the ulcer heals.
If mouth ulcers become persistent, unusually painful, or occur frequently, a dentist can evaluate the cause and recommend appropriate treatment.
