What Is Mouth Ulcer Gel and How Is It Used? – A Dentist’s Guide

Did you ever have that little sore mouth where eating or even speaking is a painful ordeal?
That is probably a canker sore, or a mouth ulcer. It might be tiny, but it can cause considerable agony. And if you are a dentist, you hear about this on a daily basis from your patients.
But fear not, as there is a simple solution to alleviating the pain and hastening healing mouth ulcer gels. But what are they? How do they function? And which do you recommend or use?
It makes it simple for dentists and inquiring patients.
What Is a Mouth Ulcer?
A mouth ulcer is a small, oval, or round sore that shows up on the soft tissues inside your mouth such as the inner cheeks, lips, tongue, gums, or even the roof of your mouth.
They’re typically:-
- Red or Pink in the middle
- Inflamed and red around the edges
- Not contagious (in contrast to cold sores)
- Painful to eat spicy or acidic foods
Mouth ulcers heal in 3 to 14 days, depending on the severity and type of mouth ulcer.
Causes of Mouth Ulcers
There are several reasons why it might occur:
Small trauma (accidental biting your cheek or over-brushing)
- Stress/anxiety
- Inadequate levels of certain nutrients (e.g., folic acid, iron, or vitamin B12)
- Food intolerance (e.g., citrus fruits, chocolate, coffee)
- Hormonal changes
- Underlying disease (e.g., celiac disease or Crohn’s)
- Some medicines or drugs (such as chemotherapy)
Sometimes it’s unknown and harmless but the pain is real!
What Is a Mouth Ulcer Gel?
Mouth ulcer gel is a medication gel that’s applied directly to the sore to help ease the pain. It can be bought over-the-counter in small tubes.
They all share a few things in common:
- Anesthetize the area to prevent the pain
- Create a shield over the ulcer
- Speed healing by sealing in comforting or antibacterial ingredients
- Shield against secondary infection
More targeted and faster-acting than home remedies.
How Does a Mouth Ulcer Gel Work?
Here’s the step-by-step rundown:
1. Pain Relief
Gels typically contain a local anesthetic like benzocaine or lidocaine. These medications deaden pain signals from the ulcer to the brain, giving instant (though short-term) pain relief.
This makes patients pain-free while eating, speaking, and brushing.
2. Protective Barrier
Some gels (especially bio adhesive ones) form a thin film or coating over the ulcer. This:
- Protects the sore from food, bacteria, and saliva
- Reduces irritation
- Preserves active ingredients
It’s like wearing a small “bandage” for your mouth!
3. Healing Support
Some ingredients aid in healing by minimizing inflammation or improving tissue repair. These can be:
- Choline salicylate (anti-inflammatory)
- Hyaluronic acid (aid to tissue regeneration)
- Antiseptics like chlorhexidine to prevent infection
All of them collectively favor faster healing and less pain.
Common Ingredients Used in Mouth Ulcer Gels
Ingredient | Purpose |
Benzocaine / Lidocaine | Numbs painful sore for pain relief |
Choline Salicylate | Relieves inflammation and swelling |
Cetalkonium Chloride | Soothing antiseptic to prevent infection |
Chlorhexidine | Antibacterial to disinfect the area |
Hyaluronic Acid | Healing and restoring moisture |
Liquorice Extract | Soothing remedy (anti-inflammatory) |

Step-by-Step Instructions for Applying a Mouth Ulcer Gel
- Wash your hands properly.
- Dry the area of the ulcer using a clean gauze or tissue (if available).
- Squeeze out a pea-sized or smaller gel amount onto a clean finger or cotton bud.
- Apply directly onto the sore, spreading with gentle pressure to cover evenly.
- Do not rinse, eat, or drink for 20–30 minutes to give the gel time to work.
Repeat 2–3 times a day, or as advised by a healthcare professional.

When Do You Recommend Mouth Ulcer Gel?
As a dentist, mouth ulcer gels are the best first-line treatment if your patient presents with:
- A single small painful ulcer
- No history of recent dental or systemic illness
- No history of recent trauma or dental treatment that led to it
They are especially helpful if the patient complains of pain on eating, speaking, or brushing.
If ulcers are:
- Recurring
- Widespread and large
- More than 2 weeks old
- Fever or swollen lymph nodes associated with
So you can search for underlying causes or consult a specialist.
Popular Mouth Ulcer Gels available in India
Some good brands that you can get at any dental store or recommend:
- Dologel
- Hexigel
- Mucopain
- Zytee RB Gel
- Oralgel
- Smilex Gel
- Orajel
These are all available at top online dental retailers such as Dentalkart, which offer genuine, affordable dental products to patients and professionals alike.
Benefits of a Mouth Ulcer Gel
✅ Provides instant pain relief
✅ Easy to apply
✅ Increases healing rate
✅ Lowers risk of infection
✅ Improves quality of life in healing
Are There Side Effects?
Most people have no grievance about ulcer gels. Some patients might have, though:
- Transient numbness
- Bitter taste
- Mild burning sensation at the site of application
- Allergic reaction (rare)
Always instruct patients to read the label and not swallow large quantities.
Precautions for Patients to Avoid Mouth Ulcers
As a dentist, adherence to the following pointers can be a lifesaver:
- Brush with a soft toothbrush or soft-bristled toothbrush
- Avoid too-spicy, too-acidic, or too-crunchy foods
- Minimize stress using stress management devices
- Consume proper vitamin and mineral consumption
- Follow good oral hygiene
- Avoid biting the inside of the lips and cheeks
And if ulcers do occur — they now know what to do!
Final Thoughts
Mouth ulcers are common but they are infuriating to patients. As a dentist, the proper mouth ulcer gel advice can bring quick relief, assist in the avoidance of complications, and show you truly care about their everyday comfort.
The next time your patient says to you, “It’s only a wee little sore, but it’s bothering the life out of me,” — you’ll have just the right to give.
FAQs
Yes, but always according to age guidelines. Some gels are available in pediatric strengths.
Wait 20–30 minutes after using to allow the gel to work.
Usually 2–3 times a day, or as instructed.
Usually 2–3 times a day, or as instructed.
Visit reliable portals like Dentalkart, who is the best online dental shop in India, to buy online dental products safely.
No Comment