Gum swelling usually responds well to a combination of home care and improved oral hygiene, though the right approach depends on what’s causing it. Most cases trace back to plaque buildup and early gum disease, which means the fix starts with how you clean your teeth and what you do in the first 24 to 48 hours after noticing the swelling.
Why Your Gums Are Swollen
Gingivitis, the earliest stage of gum disease, is the most common cause of swollen gums. Plaque collects along the gumline, bacteria multiply, and your immune system responds with inflammation. At this stage the damage is reversible. Left alone, gingivitis can progress to periodontitis, a deeper infection that destroys gum tissue and the bone supporting your teeth.
Other common triggers include an abscessed tooth (a pocket of pus around a tooth or an infection in the tooth’s inner pulp), hormonal shifts during pregnancy or puberty that increase blood flow to the gums, and irritation from poorly fitting dental appliances. Sometimes a new flossing habit or aggressive brushing causes temporary swelling that resolves on its own within a few days.
Salt Water Rinses
A warm salt water rinse is one of the simplest and most effective first steps. Salt draws excess fluid out of swollen gum tissue through osmosis, and it kills many oral bacteria by pulling water out of their cells. Mix one teaspoon of salt into eight ounces of warm water, swish gently for 30 seconds, and spit. If the rinse stings, cut the salt to half a teaspoon for the first day or two. You can repeat this two to three times a day.
Cold Compresses for Quick Relief
Applying a cold compress to the outside of your cheek near the swollen area helps constrict blood vessels and reduce inflammation. Keep it on for 10 to 15 minutes at a time, with a cloth between the ice and your skin. Space sessions at least one to two hours apart, and continue this cycle for two to four days if it’s helping. Don’t apply ice directly to gum tissue.
Over-the-Counter Pain Relief
Anti-inflammatory pain relievers like ibuprofen are more useful than acetaminophen for gum swelling because they target the inflammation itself, not just the pain. The American Dental Association recommends ibuprofen as the first-line option for dental pain. For mild discomfort, 200 to 400 mg every four to six hours as needed is a standard adult dose. For moderate pain, 400 to 600 mg every six hours for the first 24 hours, then stepping down to 400 mg as needed, provides more consistent relief. Take ibuprofen with food to protect your stomach.
Brushing and Flossing Technique
If plaque buildup is driving the swelling, no rinse or compress will solve the underlying problem. Brush twice a day with a soft-bristled toothbrush, angling the bristles toward the gumline at about 45 degrees so they sweep under the edge where plaque hides. Use gentle, short strokes rather than scrubbing hard, which can irritate already-inflamed tissue.
Floss once a day. If your gums bleed when you start flossing after a long gap, that’s a sign of inflammation, not a reason to stop. The bleeding typically decreases within a week or two of consistent flossing as the gum tissue heals. An antiseptic mouthwash can help reduce bacterial load, but it works best as an addition to brushing and flossing, not a replacement.
Vitamin C and Gum Health
Low vitamin C levels are directly linked to gum problems. A large analysis combining 15 studies and data from over 8,000 people found that people with low blood levels of vitamin C had a significantly higher risk of gum bleeding, even with gentle probing. The recommended daily intake for adult men is 90 mg and 75 mg for women, but researchers suggest aiming higher. A daily supplement of 100 to 200 mg, or simply eating more citrus fruits, bell peppers, strawberries, and broccoli, can help support gum tissue repair. This won’t replace good oral hygiene, but it gives your body the raw material it needs to heal inflamed gums.
When You Need Professional Treatment
If your swelling doesn’t improve within 48 to 72 hours of consistent home care, or if over-the-counter remedies and salt water rinses haven’t helped within a day and things are getting worse, it’s time for a dental visit. Your dentist may recommend a deep cleaning procedure called scaling and root planing, which removes hardened plaque (tarite) from below the gumline and smooths the root surfaces so gums can reattach. The ADA recommends this as the initial treatment for periodontitis, and studies show significant improvement in tissue attachment within about 45 days. Most people notice reduced swelling and bleeding well before that.
In some cases, your dentist may place a medicated chip or gel in the gum pocket after deep cleaning to fight lingering bacteria. These adjunctive treatments have varying levels of evidence behind them, so the choice depends on the severity of your case.
Signs You Need Urgent Care
Most gum swelling is uncomfortable but not dangerous. A few situations require immediate attention:
- Fever over 101°F (38.3°C) with chills or weakness, which can indicate a spreading infection
- Difficulty swallowing or breathing, or any voice changes, which signal the swelling may be affecting your airway
- Rapid swelling that worsens over hours rather than days
- Swelling moving toward your eyes or neck, which can compromise vision or breathing quickly
- Heavy bleeding that doesn’t stop after 15 minutes of firm pressure
Any of these warrant a trip to the emergency room, not just a dental office. A tooth abscess that spreads can become a serious systemic infection. If swelling is accompanied by severe pain, a loose tooth, or exposed roots from receding gums, contact your dentist the same day.