Food Allergy Testing Vancouver

Food Allergy Testing Vancouver - Officially known as apthous ulcers, canker sores are an irritated kind of mouth ulcer. They appear as an open painful sore normally in of the mouth and at times on the upper throat. Canker sores are characterized by a break in the mucus membrane. The term aphtha translates to ulcer and it has been used for many years to define areas of ulceration on mucus membranes. Recurring aphthous stomatitis or RAS could be distinguished from similar appearing oral lesions comprising herpes simplex or some oral bacteria, due to their multiplicity and their chronic nature.

Even though canker sores are not contagious, the actual reason is not known. Several individuals develop canker sores because of eating too much acidic fruit. The condition is referred to as apthous stomatitis or Sutton's Disease in the case of multiple or major recurring ulcers. At least 10% of the population suffers from recurring canker sores. It is among the most common oral conditions and it seems to affect women more compared to men. Roughly 30 to 40 percent of individuals who have persisting apthae report a family history.

Canker sores are clinically classified according to the diameter of the lesion. Minor aphthous ulcers or minor ulcerations refer to lesions the size of 3 to 10mm. The appearance of the lesion is an erythematious halo with a greyish or yellowish color. Through this time, the ulcer would be extremely painful and the affected lip area can swell. This could last up to two weeks. Major ulcerations have the same appearance but are bigger than 10mm in diameter. Due to their size and how painful they are, they could take more than a month to heal and normally leave a scar. Generally these lesions occur on movable non-keratinizing oral surfaces but the ulcer border can even extend onto keratinized surfaces. Typically, these canker sores develop after puberty with frequent recurrences.

Herpetiform Ulcerations

The most severe form are the herpetiform ulcerations. The lesions are normally found in adulthood, occurring more in females. These forms of canker sores normally heal in less than one month and usually have no scarring. It is normally suggested to utilize some supportive treatments.

Signs and Symptoms

The apthous ulcer is a big ulcer, usually found on the lower lip. Typically, these ulcers will begin with burning or tingling sensation. They usually progress to a red spot or a bump in a few days, which is followed by an open ulcer. This ulcer appears as a white or yellow oval that has an swollen red border. At times there is a white halo or circle surrounding the lesion that could be seen. These yellow or white or grey colored areas inside the red boundary is formed by layers of fibrin which is a protein involved in the clotting of blood.

These ulcers are extremely painful. If they become agitated, they can be accompanied by a painful swelling of the lymph nodes just beneath the jaw. This pain could be mistaken for a toothache and another symptom is a fever. Sores happening on the gums could be accompanied by pain or discomfort in the teeth.


The exact reason is unknown, nonetheless, there are many contributing factors to aphthous ulcers. Reasons have consisted of sudden weight loss, stress, citrus fruits such as lemons and oranges, lack of sleep, food allergies, and some vitamin deficiencies such as iron, B12 and folic acid. Immune system reactions and physical trauma could likewise bring them on. Some forms of chemotherapy and Nicorandil are also connected to aphthous ulcers. Some studies have shown a strong association of canker sores and cow's milk. These lesions are normally found in individuals who suffer from Crohn's disease and are also a major manifestation of Beh├?┬žet disease.

Trauma to the mouth is the most common trigger of ulcers. Abrasive foods such as potato chips could cause laceration. In addition, toothbrush abrasions and toast has been some known precursors. Accidental biting or dental braces could likewise break the mucous membrane that can develop into aphthous ulcers. Various factors like thermal injury or chemical irritants could also lead to the development of ulcers. Some individuals have also benefited from diets free of gluten.

Oral measures

For individuals who have braces, making use of wax over top of the dental bracket could help avoid the physical trauma that occurs on the oral mucosa by reducing the abrasion and friction. Changing toothpaste has proven beneficial for some individuals also. Looking for a more naturally based product which is free from sodium lauryl sulphate or sodium dodecyl sulphate can be beneficial. This particular detergent is found in the majority of toothpastes and making use of a paste that does not contain this particular element has been shown in several studies in order to help reduce the size, amount and recurrence of ulcers.

Zinc deficiency has even been reported in people with recurring aphthous ulcers. Although these studies have showed no direct therapeutic effect, the supplementation has reported positive results for those who have deficiency.


There are various treatments offered for apthous ulcers consisting of analgesics, aesthetic agents, anti-inflammatory agents, antiseptics, silver nitrate and tetracycline suspension. Another item found useful has been Amlexanox paste that has been known to speed healing and alleviate pain.

Other supplements which have been found helpful consist of Vitamin B12. The dietary supplement L-lysine has been found effectual in treating herpes type lesions and cold sores but there has been no proof of this being useful for canker sores. It could be helpful to rinse the mouth with salt water and avoiding spicy food.

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