Canker Cover
Canker Cover is a topical medication designed to treat canker sores (aphthous ulcers) inside the mouth. It works by forming a protective barrier over the sore, which helps reduce pain and discomfort while promoting healing of the affected tissue.
Canker Cover is an over-the-counter topical treatment for mouth ulcers that provides pain relief and promotes healing of canker sores.
Key facts at a glance
- RxNorm
- 1725070
- Generic
- Canker Cover
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Canker Cover is used to treat canker sores (aphthous ulcers), which are small, painful lesions that develop on the soft tissues inside the mouth, including on or under the tongue, inside of cheeks and lips, at the base of the gums, and on the soft palate.
Canker Cover contains active ingredients that adhere to the ulcer site, creating a protective barrier over the sore. This barrier shields the wound from further irritation caused by food, beverages, and mouth movement, while the medication helps reduce inflammation and supports the natural healing process.
Canker Cover is intended for topical use inside the mouth only and should not be swallowed. It is generally applied directly to the canker sore and allowed to dissolve. Avoid using on open wounds other than canker sores, and consult a healthcare provider if symptoms persist beyond 10-14 days or if sores are unusually large or severe.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy