Mouth Ulcers (Aphthous Ulcers) 2026 Hong Kong Dental Fee Guide: Causes, Fast Treatment & Mouthwash Recommendations

Developing mouth ulcers (medically known as aphthous ulcers) is a common oral health concern among Hong Kong residents. Whether it is an ordinary oral ulcer or a particularly troublesome tongue ulcer, these conditions can cause significant discomfort during daily eating and speaking. As an independent consumer healthcare information platform, Hong Kong Dental Guide is committed to providing residents with neutral and objective health information. This article offers a comprehensive analysis of oral ulcer causes, oral ulcer classification, and various fast treatment options for oral ulcers, helping you make informed decisions about appropriate care methods and qualified day procedure centres.

Understanding the locations of mouth ulcers and the clinical presentation of different oral ulcer classifications

1. What Are Mouth Ulcers? Oral Ulcer Classification and Common Locations

Mouth ulcer locations can span the entire oral mucosa. According to clinical oral ulcer classification, they are generally categorised as minor, major, and herpetiform. Most people experience the minor type, which typically heals on its own within one to two weeks. Common sites for mouth ulcers include the inner surface of the lips, the gums, and — most painfully for patients — the tip of the tongue or the edges of the tongue.

Many people ask: "What causes tongue ulcers?" In fact, ulcers on the underside of the tongue or tongue in general are often associated with a weakened immune system, high levels of stress, or a deficiency in B vitamins. Physical trauma within the mouth is also a common cause of oral ulcers. For example, an improperly positioned wisdom tooth can easily bite into the cheek mucosa; and a cavity with sharp edges, if not treated promptly with a dental filling or root canal treatment, can cause chronic ulceration through prolonged friction. If a missing tooth results in an uneven bite, restoring the full dentition through a dental implant can also help reduce unnecessary biting injuries.

The Difference Between Oral Blood Blisters and Painless Lumps

In addition to the typical painful mouth ulcer, people sometimes notice an oral blood blister inside the mouth. This is usually caused by accidentally biting a small blood vessel when consuming food that is too hard or too hot. Separately, if a painless lump on the inner wall of the mouth is discovered, this is often not an ordinary ulcer and may be a fibroma or mucocele. It is advisable to consult a professional dentist for further diagnosis to rule out the possibility of a malignant condition.

Proper use of mouth ulcer gel and saltwater rinsing can effectively relieve tongue ulcers and pain

2. Home Care and Fast Treatment Guide for Oral Ulcers

When faced with a painful ulcer, many people urgently seek fast treatment for oral ulcers. The following relief options have been compiled based on clinical guidelines:

• Medication: There are many over-the-counter mouth ulcer gels or patches available on the market. These contain trace amounts of corticosteroids or hyaluronic acid, which form a protective film over the affected area to reduce pain and accelerate healing.
• Mouth Rinse Care: Traditional saltwater gargling is a safe and low-cost home remedy that provides mild antibacterial and anti-inflammatory benefits. For more severe inflammation, consider using an antiseptic mouthwash containing Chlorhexidine. Regarding mouthwash recommendations, while medicated mouthwashes are highly effective, long-term use may cause tooth staining, which may subsequently require regular scaling and cleaning to remove stains.
• Dietary Adjustments: What should you eat when you have an oral ulcer? It is recommended to consume liquid or soft foods, and to avoid spicy, overly acidic, or rough foods that may irritate the wound. At the same time, supplement your diet with fresh fruits and vegetables rich in vitamins B and C.
• Improving the Oral Environment: Saliva aids in wound healing. If you frequently experience a dry mouth, how can you improve dryness of the mouth and tongue? Maintain adequate fluid intake and avoid consuming excessive amounts of caffeinated or alcoholic beverages.

Distinguishing Between Cold Sores and Mouth Ulcers: Differences in Treatment

Consumers often confuse mouth ulcers inside the oral cavity with cold sores at the edge of the lips. It is important to note that fast treatment for cold sores (i.e., fast treatment for oral herpes — distinguishing the cause) differs significantly from the management of mouth ulcers. Cold sores are caused by the herpes simplex virus (HSV), are contagious, and require antiviral cream (such as Acyclovir); whereas ordinary oral ulcers are not contagious and can be managed with general anti-inflammatory and analgesic mouth ulcer gel.

3. Frequently Asked Questions (FAQ)

1. What should I do if a tongue ulcer keeps not healing?

If a tongue ulcer shows no improvement after two weeks, or if a hard lump or bleeding develops, you should not rely solely on folk remedies. A persistently non-healing tongue ulcer may be a warning sign of a more serious condition, and a detailed examination and tissue biopsy must be performed by a professionally registered dentist.

2. Does frequently getting mouth ulcers mean I have excess internal heat?

Although this is commonly referred to as "excess heat" (熱氣) from a Traditional Chinese Medicine perspective, in modern medicine, recurring ulcers are more often associated with immune system dysregulation, hormonal changes, nutritional deficiencies, or genetics. Maintaining a balanced diet, getting adequate sleep, and reducing stress are the fundamental approaches to prevention.

3. Should I be concerned if a child develops an oral blood blister or a painless lump on the inner wall of the mouth?

The oral mucosa of children is relatively delicate and can be easily bitten during chewing, resulting in blood blisters. Blood blisters will typically rupture and heal on their own within a few days. However, if a long-lasting, painless lump is discovered, a dental examination should be arranged as soon as possible. Do not attempt to pop it yourself, as doing so may lead to serious secondary infection.

Persistent oral ulcers that do not heal should be assessed by a professional dentist as soon as possible

4. Healthcare Quality and Criteria for Selecting a Dental Centre

When dealing with a persistently non-healing ulcer or other complex dental issues, choosing an appropriate healthcare facility is of paramount importance. It is recommended that residents seek out well-equipped Day Procedure Centres. Such centres must meet stringent infection control and medical facility standards, providing a safer and more reliable diagnostic environment. Before attending, consumers should enquire clearly about the dentist's qualifications and fee transparency, and avoid trusting exaggerated commercial promotional claims, in order to ensure that their health and rights are fully protected.