Swollen gums usually respond well to a combination of home care and, if needed, professional cleaning. The fix depends on the cause: most gum swelling comes from bacterial buildup along the gumline, but hormonal changes, nutritional gaps, and infections can also be responsible. Here’s how to bring the swelling down and keep it from coming back.
Quick Relief at Home
A warm salt water rinse is the simplest first step. Dissolve half a teaspoon of salt in a cup of warm water, swish it gently around your mouth for 30 seconds, and spit. Salt draws fluid out of inflamed tissue and creates an environment that’s harder for bacteria to thrive in. You can repeat this two to three times a day.
Over-the-counter anti-inflammatory pain relievers like ibuprofen (200 to 400 mg every four to six hours for adults) reduce both swelling and discomfort by blocking the chemical signals that trigger inflammation. If you’d rather not take medication, applying a cold compress to the outside of your cheek for 15 minutes at a time can also help numb the area and limit swelling.
Avoid very hot or very cold foods while your gums are irritated, and switch to a soft-bristled toothbrush if you haven’t already. A stiff brush can further aggravate inflamed tissue.
Why Your Gums Are Swollen in the First Place
The most common cause is gingivitis, an early stage of gum disease triggered by plaque, the sticky bacterial film that forms on teeth throughout the day. When plaque sits along the gumline for too long, your immune system responds with inflammation: redness, puffiness, and bleeding when you brush or floss. The good news is that gingivitis is fully reversible with better oral hygiene and professional cleaning.
Left untreated, gingivitis can progress to periodontitis. At that stage, bacteria spread below the gumline, and your body’s inflammatory response starts breaking down the bone and tissue that hold your teeth in place. The gums pull away from the teeth, forming deepening pockets that trap more bacteria. Periodontitis isn’t reversible in the same way gingivitis is, though treatment can stop it from getting worse.
Other triggers include hormonal shifts (especially during pregnancy, when rising estrogen and progesterone make gum tissue more reactive to bacteria), certain medications that reduce saliva flow, and poorly fitting dental work that traps food against the gumline.
The Role of Vitamin C
Low vitamin C levels in the bloodstream are linked to an increased risk of gum bleeding and swelling. Your gums depend on vitamin C to maintain the connective tissue that holds them firm against your teeth. The recommended daily intake for adult men is 90 mg and 75 mg for adult women, but Harvard Health Publishing notes that bumping your intake to 100 to 200 mg daily, through foods like bell peppers, kiwis, oranges, and kale, or a supplement, can make a measurable difference in gum health. If your diet has been light on fruits and vegetables, this is a straightforward adjustment worth trying.
Brushing Technique Matters More Than You Think
Most people brush their teeth but miss the exact spot where swelling starts: the narrow groove where the gum meets the tooth. The American Dental Association recommends the Bass technique specifically because it targets that area. Hold your toothbrush at a 45-degree angle to the gumline and make short, gentle back-and-forth strokes on each tooth, then sweep the brush away from the gum toward the biting edge of the tooth. This pulls plaque and debris out of the groove rather than pushing it deeper.
Flossing once a day clears the bacteria your toothbrush can’t reach between teeth. If traditional floss feels awkward, interdental brushes or a water flosser accomplish the same goal. The key is daily consistency. Gum swelling caused by plaque buildup typically starts improving within a week or two of thorough daily cleaning.
When You Need Professional Treatment
If swelling doesn’t improve after one to two weeks of diligent home care, the problem is likely below the gumline where your toothbrush can’t reach. A dentist or hygienist can perform scaling and root planing, often called a deep cleaning. During this procedure, they numb the area, then use hand instruments or ultrasonic tools to remove hardened plaque (tartar) from both above and below the gumline. They also smooth the root surfaces of your teeth so gum tissue can reattach more tightly. Your teeth may feel slightly loose right after the procedure, but that resolves as the gums heal and tighten back up over the following weeks.
In some cases, your provider may place antibiotics directly around the tooth roots or prescribe a short course of oral antibiotics to knock back a stubborn infection. Antimicrobial mouthwashes containing chlorhexidine are sometimes prescribed as a short-term addition to your routine. In the UK, these are licensed for up to 30 days of use and aren’t intended for ongoing daily rinsing because they can stain teeth and alter taste with prolonged use.
Pregnancy-Related Gum Swelling
If you’re pregnant and noticing puffier, more sensitive gums, you’re not imagining it. Rising levels of estrogen and progesterone increase blood flow to gum tissue and amplify the inflammatory response to normal amounts of plaque. This is common enough to have its own name, pregnancy gingivitis, and it peaks in the third trimester, affecting roughly half of pregnant women at that stage. The swelling typically resolves after delivery as hormone levels return to normal, but maintaining good brushing and flossing habits throughout pregnancy keeps it from progressing to something more serious. Professional cleanings during pregnancy are safe and often recommended.
Signs That Need Urgent Attention
Most gum swelling is a slow-building nuisance, not an emergency. But certain symptoms signal that a localized problem has become dangerous. If you develop a fever along with facial swelling, or if you notice pus draining from around a tooth, that points to a dental abscess: a pocket of infection that can spread to your jaw, throat, neck, or even your bloodstream. Difficulty breathing or swallowing alongside facial swelling means the infection may have spread deeper into your airway, and that requires an emergency room visit, not a dentist appointment. An untreated abscess won’t resolve on its own and carries the risk of sepsis.