Swollen gums usually respond well to a combination of home care and better oral hygiene, though persistent swelling can signal an underlying issue that needs professional treatment. The fastest relief comes from salt water rinses, cold compresses, and over-the-counter anti-inflammatory medication, while long-term improvement depends on addressing whatever is causing the inflammation in the first place.
Salt Water Rinses
A warm salt water rinse is the simplest and most effective first step. Mix half a teaspoon of salt into a cup of warm water, swish it gently around your mouth for 30 seconds, and spit. Salt draws fluid out of swollen tissue through osmosis, which temporarily reduces puffiness and helps flush bacteria from the irritated area. You can repeat this two to three times a day, especially after meals.
Salt water won’t fix the root cause of your swelling, but it creates a cleaner environment for your gums to heal and provides noticeable relief within a day or two for mild cases.
Cold Compresses and Pain Relief
If the swelling is visible on the outside of your cheek or jaw, apply a cold pack to the area for 10 to 20 minutes at a time with a thin cloth between the ice and your skin. Cold constricts blood vessels and slows the inflammatory response, which reduces both swelling and pain. You can repeat this several times throughout the day with breaks in between.
For pain and inflammation from the inside out, ibuprofen works well because it targets both. Adults can take 400 milligrams every four to six hours as needed. Ibuprofen is more effective than acetaminophen for gum swelling specifically because it reduces inflammation rather than just masking pain. Avoid aspirin if you’re bleeding from the gums, as it thins the blood and can make bleeding worse.
Antiseptic Mouthwash
Chlorhexidine mouthwash, available over the counter or by prescription depending on your country, is the most studied antiseptic rinse for gum inflammation. It kills bacteria that brushing misses and is particularly useful as a short-term tool while your gums are actively swollen. The key limitation: don’t use it for more than four weeks. Beyond that, it can stain teeth and cause tartar buildup. In the UK, chlorhexidine mouthwashes are licensed for a maximum of 30 days.
If you prefer something gentler for ongoing use, alcohol-free mouthwashes with cetylpyridinium chloride are a reasonable alternative, though they have less evidence behind them.
Why Your Gums Are Swollen
The remedy that works best depends on what’s driving the swelling. The most common culprits fall into a few categories.
Plaque buildup and gingivitis. This is the most frequent cause. Bacteria in plaque irritate the gum line, triggering inflammation. Your gums look red, feel puffy, and bleed easily when you brush. Gingivitis is reversible with consistent cleaning. During a dental exam, healthy gums measure 1 to 3 millimeters in the small gap between the gum and tooth. When that gap deepens beyond 4 or 5 millimeters, it suggests the inflammation has progressed to periodontitis, a more serious condition where the bone supporting your teeth starts to break down.
Vitamin C deficiency. Research published by Harvard Health found that low vitamin C levels in the bloodstream are associated with increased gum bleeding, even with gentle probing. A study pooling data from over 8,000 people confirmed this link. Severe deficiency causes scurvy, where bleeding gums are a hallmark symptom, but even moderate shortfalls can make gum tissue more fragile and prone to swelling. If your diet is low in fruits and vegetables, this is worth considering.
Hormonal changes. Pregnancy, puberty, and menstrual cycles increase blood flow to the gums and make them more reactive to plaque. Pregnancy gingivitis is common enough that it has its own name, and it typically peaks in the second trimester.
Infection or abscess. A localized, painful swelling near one tooth often points to an abscess, which is a pocket of infection. This needs professional treatment and won’t resolve with home care alone.
Improving Your Daily Cleaning Routine
If plaque is the problem, better daily cleaning is the actual cure. Swollen gums often bleed when you brush or floss, which makes people clean less aggressively, which allows more plaque to build up. Breaking that cycle is essential.
Use a soft-bristled toothbrush and angle it toward the gum line at about 45 degrees. Brush for a full two minutes, twice a day. An electric toothbrush with a pressure sensor can help if you tend to scrub too hard. Cleaning between your teeth matters just as much as brushing. A Cochrane review of the evidence found that interdental brushes (the small, bristled picks that fit between teeth) may reduce gum inflammation more effectively than traditional floss at both one and three months of use. Floss still helps, but if your teeth have enough space for interdental brushes, they tend to do a better job of removing plaque from between the roots.
When you first start cleaning inflamed gums properly, expect some bleeding for the first week or two. This is normal and not a reason to stop. The bleeding typically decreases as the inflammation calms down.
Professional Treatment for Persistent Swelling
If your gums are still swollen after two weeks of consistent home care, you likely need a professional cleaning. For mild gingivitis, a standard cleaning removes the tartar (hardened plaque) that your toothbrush can’t reach.
For more advanced cases, your dentist may recommend scaling and root planing, often called a deep cleaning. During this procedure, your gums are numbed with local anesthesia, then plaque and tartar are removed from both above and below the gum line using hand instruments or ultrasonic tools. The root surfaces of your teeth are then smoothed so gums can reattach more easily. Your dentist may also place antibiotics around the tooth roots or prescribe a short course of oral antibiotics.
Most people return to normal activities the same day. Your teeth might feel slightly loose right afterward because of the swelling reduction, but this resolves as the gums tighten back up over the following weeks. You’ll typically have a follow-up visit to check that the pockets around your teeth are shrinking.
Warning Signs That Need Urgent Care
Most gum swelling is a nuisance, not an emergency. But certain symptoms alongside swollen gums indicate a spreading infection that requires immediate medical attention:
- Fever, especially a high or rising one
- Swelling that extends to your jaw, neck, or under your eye
- Difficulty swallowing or breathing
- Uncontrollable bleeding
These signs suggest the infection may be moving beyond the gum tissue into deeper spaces in the head and neck, which can become dangerous quickly. This is a situation for the emergency room, not a scheduled dental visit.