Canker sores are common mouth ulcers, appearing as painful, shallow lesions inside the mouth. They typically feature a white or yellowish center surrounded by a bright red border. While not contagious, canker sores cause discomfort, making eating and talking difficult. Alum, a traditional home remedy, is often used to alleviate symptoms and promote healing of these oral lesions.
Alum’s Role in Canker Sore Relief
Alum, chemically known as potassium aluminum sulfate, is a compound recognized for its astringent properties. When applied to a canker sore, alum works by drawing liquid from affected tissue, drying the sore. This drying effect can reduce swelling and pain.
Beyond drying, alum helps contract soft tissues around the canker sore. This contraction can form a protective barrier over the lesion, shielding it from further irritation and promoting faster healing. Alum also possesses mild anti-inflammatory properties, reducing discomfort and tenderness. Some research indicates alum has antibacterial qualities, which could assist healing by preventing bacterial growth in the open sore.
Safe and Effective Alum Application
Applying alum to a canker sore is a straightforward process. Begin by ensuring the mouth is clean; a gentle rinse with warm water can help remove food particles. Next, take a small pinch of alum powder, typically an amount that covers the tip of a teaspoon. Apply this powder directly to the canker sore using a clean fingertip or a cotton swab.
Alternatively, create a paste by mixing a tiny amount of alum powder with a single drop of water and dab it onto the sore. Allow the alum to remain on the canker sore for one minute. A temporary stinging or burning sensation is common upon application, indicating the alum is working. After one minute, thoroughly rinse your mouth with water, ensuring all traces of the alum are removed, and avoid swallowing it. Repeat this application once or twice daily for a few days until symptoms improve.
When to Seek Professional Advice
While alum can be an effective home remedy for canker sores, be aware of potential side effects and when professional medical attention is necessary. Overuse or improper application can lead to irritation or damage to delicate oral tissues. Avoid ingesting alum, as it is not intended for internal consumption.
Consult a healthcare provider if a canker sore is unusually large or persists for more than two weeks without healing. Recurring sores, especially if new ones appear before older ones heal or outbreaks are frequent, warrant medical evaluation. Seek professional advice if the sore extends to the lips, causes extreme difficulty with eating or drinking, or is accompanied by a fever. These symptoms could indicate a more serious underlying condition requiring medical diagnosis and treatment.