Canker sores, also known as aphthous ulcers, are small, painful lesions that develop on the soft tissues inside the mouth. These ulcers typically present as white or yellowish spots surrounded by a bright red border, making eating and talking uncomfortable. Unlike cold sores, canker sores are not contagious and are not caused by a virus. They commonly appear on the tongue, gums, inner cheeks, or the roof of the mouth.
How Milk of Magnesia and Benadryl Address Canker Sores
The combination of Milk of Magnesia and Benadryl offers a two-pronged approach to alleviating the discomfort of canker sores. Milk of Magnesia functions as an antacid, which can help neutralize the acidic environment that may irritate the sore. Beyond its antacid properties, Milk of Magnesia also forms a protective coating over the canker sore, shielding the ulcer from further irritation by food, drinks, and saliva, providing a soothing effect and potentially accelerating the healing process.
Benadryl, containing diphenhydramine, is an antihistamine that provides local anesthetic effects when applied topically. This means it can numb the nerve endings in and around the canker sore, significantly reducing pain. Its topical application can offer temporary relief from the localized pain of canker sores. The combined action of Milk of Magnesia’s protective and neutralizing properties with Benadryl’s pain-relieving effects helps manage symptoms and promotes comfort.
Preparing and Applying the Mixture
To prepare this mixture, use liquid Milk of Magnesia, preferably the original unflavored type, and liquid Benadryl (diphenhydramine oral solution). It is important to use the liquid allergy medicine and not gel caps or tablets. The common and safe ratio for mixing these two ingredients is one-to-one. For instance, mix a small, equal amount of each in a clean container, such as a teaspoon of each.
Once mixed, apply the solution directly to the canker sore using a clean cotton swab. Gently dab the mixture onto the sore, ensuring the ulcer is fully coated. Hold the swab in place for a few seconds to allow the mixture to adhere and form a protective layer. This mixture can be applied three to four times a day, particularly after meals or before bedtime, to maintain continuous relief. This mixture is intended for topical use only, and it should not be swallowed due to the Benadryl component, especially in larger quantities.
Safety and Important Precautions
While the Milk of Magnesia and Benadryl mixture can offer relief, be aware of potential side effects and contraindications. If the mixture is accidentally swallowed, particularly the Benadryl component, drowsiness can occur. Local irritation or a dry mouth might also be experienced at the application site. Prioritize avoiding ingestion.
This remedy is not suitable for everyone. Young children should avoid this mixture due to the risk of accidental swallowing and potential systemic effects of Benadryl. Individuals who are pregnant or breastfeeding should consult a healthcare provider before using this remedy, as the safety of its components during these periods is not fully established. People with known allergies to diphenhydramine or magnesium hydroxide should also refrain from using this mixture. Additionally, individuals with specific medical conditions, such as kidney impairment, or those taking other medications that could interact with systemic antihistamines, should seek medical advice beforehand. The mixture is intended for short-term use, for a few days up to one to two weeks. If symptoms do not improve within this timeframe, discontinue use.
When to Seek Medical Advice
While many canker sores heal on their own within one to two weeks, there are instances when medical attention becomes necessary. If a canker sore persists for longer than two weeks, or if new sores appear before older ones have healed, it is advisable to consult a doctor or dentist. Unusually large sores, extreme pain that interferes with eating or drinking, or frequent recurrence also warrant professional evaluation.
Signs of a possible infection, such as increased redness, swelling, pus, fever, or swollen lymph nodes, indicate a need for immediate medical advice. Recurrent or severe canker sores can sometimes be a symptom of an underlying health condition. These conditions might include nutritional deficiencies, immune system disorders, or gastrointestinal diseases. A healthcare professional can diagnose the cause and recommend appropriate treatment options.