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If Your Mouth Feels Sore and Uncomfortable Near Nonhyeon Station Dental Clinic

LUCID Dental Clinic · 루시드치과 · September 30, 2025

Hello, this is Lucid Dental Clinic. Everyone has probably experienced discomfort at least once from a white spot-like sore in the mouth. It can sting and hurt every time you eat or...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: LUCID Dental Clinic

Original post date: September 30, 2025

Translated at: April 20, 2026 at 2:27 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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Hello, this is Lucid Dental Clinic.

Everyone has probably experienced discomfort at least once from a white spot-like sore in the mouth.

It can sting and hurt every time you eat or drink water, so even a small sore can make daily life inconvenient.

This kind of symptom is commonly called stomatitis.

Stomatitis is a common condition many people experience, but people often do not know exactly what causes it, why it hurts so much, or how to prevent it.

In this post, we will look at the causes, types, and characteristics of stomatitis, as well as ways to manage it in daily life.

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What is stomatitis?

Stomatitis refers to any condition in which inflammation develops in the lining of the mouth.

It can appear anywhere on the oral mucosa, including the gums, tongue, inside of the cheeks, and inside of the lips. Small ulcers can feel more or less uncomfortable depending on where they appear, and if they develop in areas that often touch food, such as the side of the tongue or the inside of the lips, the pain can feel severe.

Many people think of stomatitis as simply a "sore in the mouth," but in fact there can be various factors behind it.

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Main causes of stomatitis

Weakened immunity

When fatigue, overwork, and stress continue for a long time, immunity drops and stomatitis develops more easily. Lack of sleep is also one of the major causes.

Nutritional imbalance

If you are deficient in the vitamin B group or zinc, the oral mucosa becomes weaker and sores form more easily. In particular, vitamin B12 plays an important role in mucosal health.

Trauma

Scratching the oral mucosa while chewing hard or sharp foods, or physical irritation from orthodontic appliances or prostheses, can also lead to stomatitis.

Hormonal changes

In women, hormonal changes such as the menstrual cycle or pregnancy can also affect the development of stomatitis.

Viral and bacterial infections

Simple herpes virus and bacterial infections can also be causes. Herpetic stomatitis, which is especially common in young children, may also be accompanied by fever.

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Types and characteristics of stomatitis

Stomatitis can be divided into several types depending on its form and cause.

Aphthous stomatitis

This is the most commonly seen type. Small, round white ulcers appear on the oral mucosa, either one or several at a time. The pain can be severe, making it uncomfortable to eat or speak, but in many cases it improves naturally within 1 to 2 weeks.

Herpetic stomatitis

This occurs due to a virus, and multiple blisters form in clusters. It may also be accompanied by fever and systemic symptoms.

Traumatic stomatitis

This occurs when orthodontic appliances, accidentally biting food, or sharp prostheses damage the mucosa. In many cases, symptoms recover quickly once the cause is removed.

Candidal stomatitis

This is caused by a fungal infection and is characterized by a white coating or membrane. It often develops in people who are tired or have weakened immunity.

Does stomatitis hurt?

One of the questions many people have is, "Why does stomatitis hurt so much?"

With stomatitis, the nerves in the mucosa become exposed, so even a small刺激 triggers strong pain. That is why it hurts not only when eating, but also when drinking water or even speaking.

However, the degree of pain varies from person to person and depending on the location of the inflammation. In some cases, there is almost no discomfort, while in others it can be painful enough to greatly affect daily life.

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How to prevent stomatitis in daily life

Stomatitis is closely related to lifestyle habits and immunity, so daily management is important.

  1. Get enough sleep and rest

When your body is exhausted, the oral mucosa also weakens. A regular routine and sufficient sleep are basic essentials.

  1. Eat a balanced diet

Getting a wide range of vitamins and minerals helps keep the oral mucosa healthy. It is good to regularly eat green and yellow vegetables, fruit, nuts, and seafood.

  1. Avoid irritating foods

Very spicy or salty foods, and hot foods, can irritate the oral mucosa and worsen stomatitis.

  1. Maintain oral hygiene

Keeping the mouth clean through toothbrushing, flossing, and mouthwash can reduce bacterial growth.

  1. Manage stress

Mental stress is also a major cause of weakened immunity. Relieving stress through light exercise or hobbies can help.

  1. Reduce mouth trauma

If sores keep forming because of orthodontic appliances or prostheses, adjustments may be needed through dental treatment.

Stomatitis is a common symptom that people can experience often in daily life, but it can also cause significant inconvenience. When pain makes eating or talking difficult, quality of life can also decline. Understanding the cause and preventing stomatitis through immunity management and proper lifestyle habits is the best approach.

If symptoms keep recurring or last for a long time, it may not be simple stomatitis, so considering a professional consultation is also a good idea.

Stomatitis may seem like a small sore, but it can cause major inconvenience in daily life. Small habits in everyday life can be the starting point for protecting a healthy mouth.

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