If you’ve bitten the inside of your cheek and woken up with a small, painful sore the next day, you already know what a mouth ulcer feels like. Most mouth ulcers, including the kind we see often in Bayswater patients, are nothing serious and clear up on their own within a week or two. The ones that keep coming back, or hang around longer than expected, are the ones worth paying attention to. If you’re experiencing discomfort, it may be worth considering mouth ulcers Bayswater for further guidance.

What Are Mouth Ulcers?

A mouth ulcer is a small, shallow sore that forms on the soft tissue inside your mouth — the inner cheeks, lips, tongue, or gums. They usually show up as a round or oval spot with a white or yellowish centre and a red, inflamed edge. They sting when you eat anything acidic, salty, or spicy, which is often how people notice them in the first place. According to Healthdirect, most ulcers heal naturally within one to two weeks without any treatment at all.

It’s worth knowing the difference between an ulcer and a cold sore. Cold sores are caused by a virus, usually appear on the outside of the lips, and are contagious. Mouth ulcers form inside the mouth and aren’t contagious at all.

Why Do Mouth Ulcers Happen?

There’s rarely one single cause. Most people get a combination of a few of these.

Stress and Anxiety

Honestly, this is where many people get confused — stress doesn’t directly create an ulcer, but it does seem to make people more prone to them, likely through its effect on the immune system.

Minor Injuries

Biting your cheek, a sharp piece of food, or even a rough edge on a filling can trigger one.

Food Sensitivities

Acidic foods like citrus and tomato, and sometimes chocolate or nuts, can irritate the mouth lining in sensitive people.

Vitamin Deficiencies

Low iron, B12, or folate levels are a common but often overlooked cause of recurring ulcers.

Hormonal Changes

Some people notice a pattern around their menstrual cycle, which points to hormones playing a role.

Underlying Medical Conditions

Recurring or unusually large ulcers can sometimes be linked to conditions like coeliac disease or inflammatory bowel disease. This is rare, but it’s one of the reasons the Better Health Channel suggests getting ulcers checked when they don’t follow the usual pattern.

How Can You Relieve Mouth Ulcers at Home?

Understanding Mouth Ulcers Bayswater

For most everyday ulcers, simple home care is enough:

• Saltwater rinses – a teaspoon of salt in warm water, swished a few times a day, helps keep the area clean.
• Avoid spicy or acidic foods – give the ulcer a break from anything that stings.
• Stay hydrated – a dry mouth tends to make irritation worse.
• Topical treatments – over-the-counter gels can numb the area and form a protective barrier.
• Use a soft toothbrush – less friction against the sore spot while it heals.

Fair enough — it’s hard not to worry when something painful keeps coming back, but most single ulcers resolve within seven to ten days without anything more than this.

When Should You See a Dentist?

Most ulcers don’t need a dental visit, but a few signs suggest it’s time to get one checked:

• It’s lasted more than two weeks without improving
• You’re getting them frequently, one after another
• The pain is severe enough to affect eating or talking
• It’s unusually large, or appears alongside other symptoms like fever or swollen glands

The Australian Dental Association recommends getting any ulcer checked if it hasn’t settled within two weeks. If pain is intense or you’re struggling to eat or drink, it’s worth contacting an emergency dentist in Bayswater rather than waiting it out. Otherwise, mentioning it at your next routine dental check-up is usually enough.

Can Children Get Mouth Ulcers?

Yes, and it’s more common than most parents expect. Kids often get them from biting their cheek, braces or orthodontic appliances rubbing, or simply a mild viral infection. Most settle down within a week with the same home care as adults — though spicy or acidic foods are an easier fix to avoid with kids.

If your child’s ulcers are large, painful enough to put them off eating, or keep recurring, it’s worth raising at their next visit for children’s dental care rather than assuming it’s just one of those things.

The Bottom Line

Most mouth ulcers are uncomfortable rather than serious, and they tend to sort themselves out with a bit of salt water and time. But ulcers that keep returning, last longer than two weeks, or come with other symptoms are your mouth’s way of asking for a closer look. If you’re in Bayswater and something doesn’t feel right, having it checked early is usually the simplest option — and if you’re new to the clinic, new patient appointments are a straightforward way to get started.

FAQs

Why do I keep getting mouth ulcers?

Recurring ulcers are often linked to stress, minor injury, certain foods, or low iron and B12 levels. If they keep coming back, it’s worth getting checked rather than assuming it’s bad luck.

Can stress cause mouth ulcers?

Stress doesn’t cause ulcers directly, but it’s commonly linked to flare-ups, likely through its effect on the immune system.

How long should a mouth ulcer last?

Most heal within seven to ten days. Anything lasting beyond two weeks is worth having looked at.

When should I see a dentist for mouth ulcers?

If one lasts more than two weeks, keeps recurring, causes severe pain, or makes eating difficult, book a check rather than waiting it out.

Are mouth ulcers contagious?

No. Unlike cold sores, mouth ulcers aren’t caused by a virus and can’t be passed on to anyone else.

Can children get mouth ulcers?

Yes, often from a knock to the cheek, braces, or a mild virus. Most clear up within a week with simple home care.