How to Get Rid of a Cut Inside Your Mouth

Cuts inside the mouth are common but painful due to constant moisture, movement, and oral bacteria. The soft lining, known as the mucosa, is easily injured by accidental cheek-biting, sharp foods, or dental appliances. Although the oral cavity heals quickly, these injuries interfere with basic functions like eating and speaking. This guide provides practical steps for managing immediate discomfort and accelerating the recovery process for these minor wounds.

Immediate Relief and Simple Home Treatments

Start with a warm salt water rinse. Dissolving a half-teaspoon of salt into eight ounces of warm water creates a hypertonic solution that draws fluid out of inflamed tissue, reducing swelling and pain. Swishing this solution several times daily acts as a gentle antiseptic, cleansing the wound of debris and bacteria without the harshness of alcohol-based mouthwashes.

Applying a paste made from baking soda and water can provide targeted relief by neutralizing the wound’s environment. The alkaline nature of sodium bicarbonate raises the pH level, counteracting acidic conditions that exacerbate inflammation. Apply a small dab of this paste directly to the cut for several minutes before rinsing to soothe irritation.

To manage swelling and provide temporary numbing, apply a small piece of ice directly to the cut. This constricts blood vessels, slowing the inflammatory response and dulling pain signals. Avoid foods that might mechanically or chemically irritate the injury, such as spicy dishes, acidic citrus fruits, tomatoes, or anything crunchy or sharp that could tear the healing tissue.

Over-the-Counter Products for Faster Healing

When home treatments are insufficient, specialized over-the-counter products offer direct treatment. Topical anesthetic gels, often containing benzocaine, temporarily block nerve signals for immediate pain relief. Apply these gels sparingly and directly to the cut to create a temporary numbing sensation, allowing for easier eating and speaking.

Oral adhesive pastes or protective bandages create a physical barrier over the wound. These products adhere to the moist oral mucosa, shielding the cut from friction caused by teeth, tongue, or food. Protecting the wound from saliva and irritants allows the underlying tissue to regenerate more quickly.

Non-alcohol-based antimicrobial mouth rinses can be used to keep the area clean and reduce the bacterial load. These rinses may contain mild antiseptics or essential oils designed to cleanse the entire oral cavity. Using a non-irritating rinse supports the healing process by minimizing the risk of secondary infection.

When to Consult a Healthcare Professional

Most minor cuts heal completely within seven to ten days, but certain symptoms warrant immediate attention from a dentist or physician. Seek professional diagnosis if a cut persists without improvement after two weeks. Medical care is also necessary if the cut is exceptionally large, deep, or has jagged edges that may require stitches.

Signs of infection include a fever, spreading redness or warmth around the cut, or the presence of thick, yellowish pus. Uncontrollable bleeding—heavy bleeding that does not stop after 10 to 15 minutes of continuous firm pressure—is an emergency. Any cut causing significant difficulty swallowing, breathing, or speaking should be evaluated immediately.