A Simple Onion Trick Some People Use for Mouth Ulcers

Mouth ulcers, also known as canker sores, can be surprisingly painful. Even small sores inside the mouth may cause discomfort while eating, drinking, or talking.

There are many home remedies people use to try to calm irritation, and one traditional trick involves onion.

Some people believe that onion may help because it naturally contains sulfur compounds and antibacterial properties.

How this home remedy is usually used

Before going to bed:

• cut a small piece of onion
• chew it slowly
• try to keep the onion juice near the irritated area inside the mouth

Some people gently move the onion around the sore with their tongue for a short time before spitting it out.

Why people try this method

Onion has a strong natural composition that some believe may help:

• reduce bacteria
• calm irritation
• support natural healing

However, reactions can vary from person to person.

Important note

If the onion causes burning, strong irritation, or additional discomfort, stop immediately.

Mouth ulcers can also be caused by:

• stress
• vitamin deficiencies
• irritation from food
• accidental biting
• lack of sleep

When to see a doctor

If mouth ulcers:

• last longer than two weeks
• become very painful
• appear very frequently
• or are accompanied by fever

it is important to speak with a doctor or dentist.

Tip

Drinking enough water, avoiding very spicy foods, and maintaining good oral hygiene may also help the mouth recover faster.