Toothpaste allergy

It is important to note that toothpaste is a commonly used product for oral hygiene. Nevertheless, many individuals are not aware that toothpaste can also cause allergies. Even though it is recommended to brush teeth at least two times a day, there are rare circumstances in which an individual experiences discomfort around the mouth after using toothpaste.

Symptoms of toothpaste allergy

Oftentimes, toothpaste allergy is misdiagnosed or not even reported. It is vital that you know the signs and symptoms of toothpaste allergy. In doing so, the individual will know whether he/she is allergic to the toothpaste used. The following symptoms can occur right away or hours after brushing.

Contact dermatitis

An allergy to toothpaste can trigger rashes that start in the corners of the mouth and can even spread if not treated. The rashes can also occur around the lower lip area.

Toothpaste allergy

An allergy to toothpaste can trigger rashes that start in the corners of the mouth and can even spread if not treated.

Canker sores

The mouth ulcers are painful and sensitive to spicy foods and beverages such as orange juice. They can also occur along with inflammation of the gums after brushing.

Perioral dermatitis

This type of dermatitis is an itchy, red-colored rash that peels and appears as small-sized acne. This is usually triggered by an allergy to fluoride. Take note that the rash starts around the lips and spread to other parts of the face such as the chin, cheeks and nose.


This is considered as a main symptom of toothpaste allergy which causes dryness, irritation and cracking of the mouth. In severe cases, it can even lead to swelling and oozing of pus from the corners of the mouth.

Stomach upset

When brushing, the individual can ingest a small amount of toothpaste. This can result to gastrointestinal issues and a sick feeling if he/she is allergic to toothpaste.

Other symptoms of toothpaste allergy include hives, respiratory issues as well as itchiness, inflammation of the gums, watery eyes and even anaphylactic shock.

Allergy to fluoride and other ingredients

An allergic reaction to toothpaste can be triggered by one of the substances used in toothpaste. In some cases, peppermint or spearmint oil in toothpaste can cause discomfort, swelling, redness and sore lesions.

In most circumstances, fluoride is one of the ingredients in toothpaste that triggers an allergic reaction. The common symptoms triggered by fluoride include perioral dermatitis and canker sores.

Other ingredients present in toothpaste that can trigger an allergic reaction include additives, flavoring, propylene glycol, sodium benzoate and cocamidopropyl betaine.


It is vital not to ignore the symptoms of toothpaste allergy especially if the individual experienced them before. If any of the symptoms are present, it is best to consult a dentist so that the problem is diagnosed properly. There are also measures in order to prevent the symptoms of toothpaste allergy.

  • Always wash the mouth and face after brushing and pay close attention to any toothpaste residue on the corners of the mouth.
  • When buying toothpaste, choose one that contains the fewest ingredients. It is recommended to try different brands to check those that cause the least allergic reactions.
  • Avoid toothpastes that contain fluoride. Remember not to drink or rinse the mouth using fluorinated water.
  • The individual should use less toothpaste. This can reduce exposure to the allergenic ingredients as well as reduce ingestion of toothpaste.
  • Toothpastes that contain natural ingredients might still be allergenic. These usually have a rare combination of herbs that can also trigger an allergic reaction.


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