Canker sores are painful bumps in the mouth that interfere with the ability to eat, drink, or even talk, making them a significant inconvenience. While many over-the-counter treatments can treat a canker sore on the tongue or inside the cheek, many people resort to home remedies. Stay with us to learn how to get rid of canker sores.
What Are Canker Sores and Mouth Ulcers?
Canker sores are a type of small mouth ulcer. Also known as aphthous ulcers, canker sores are small, painful, and can appear anywhere in the mouth's soft tissue. You can get a canker sore on the tongue, lips, gums, or inside of the cheeks. When they develop, canker sores are less than a third of an inch across with a white or yellow center and a red, inflamed border.
Common causes of canker sores include stress, trauma (such as biting the inside of your cheek), hormonal fluctuations, food sensitivities, and vitamin deficiencies. It’s important to note that canker sores are not cold sores. A canker is not contagious or caused by viral infections.
It’s important to note that canker sores are not cold sores.
It’s important to note that canker sores are not cold sores.
How to Cure Mouth Ulcers Fast Naturally: Top 15 Home Remedies
Salt Water Rinse
Putting salt directly on a canker sore is an old remedy, but one that causes significant pain and irritation. Instead, we recommend using a salt water rinse. Salt water rinses are an effective antibacterial treatment that helps disinfect and reduce inflammation. The rinse may cause some canker sore
Salt water rinses are an effective antibacterial treatment that helps disinfect and reduce inflammation.
- Add 1 tsp salt in half a cup of warm water.
- Dissolve and swirl it in your mouth for around 20-30 seconds, then spit.
- Repeat 2-3 times a day.
- Add 1 tsp of A.C.V. to a cup of water.
- Rinse your mouth with this solution for 30 to 60 seconds, then spit.
- Once done, rinse your mouth again with fresh, plain water.
Additional Tips for Prevention
Knowing how to get rid of canker sores is excellent. Knowing how to prevent them is even better. While you can’t eliminate the possibility of mouth ulcers, you can lower your risk by maintaining good oral hygiene, staying hydrated, eating a balanced diet, and managing stress.
When To Seek A Dentist’s Help for Canker Sores
While most canker sores heal on their own in a couple of weeks, there are certain situations when you need to get a dentist on board:
- Persistent Canker Sores: If your canker sore doesn't heal within two weeks or keeps returning.
- Severe Pain: If the pain from your mouth ulcer is unbearable and makes living difficult.
- Large Canker Sores: A thorough examination is needed if you develop a canker sore that is either larger than usual or looks different.
Presence of Canker Sores With Other Symptoms
: If your mouth ulcer comes with fever, swollen lymph nodes, or swallowing issues, it is not normal and needs help.
Schedule a Visit with Rodeo Dental
Natural remedies often help heal canker sores, but no cure works for everyone. Experiment to discover which cures work best for you, and always
or healthcare provider if canker sore symptoms persist.

Medically Reviewed By
Dr. Sahil Patel, DDSGeneral Dentist
Compassionate dentist focused on preventive care and patient education.
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