Gum swelling usually comes from plaque buildup irritating the tissue around your teeth, and in most cases, consistent home care can resolve it within two weeks. If it doesn’t improve in that window, something deeper is likely going on. The good news: whether you’re dealing with mild inflammation or something more persistent, there are effective steps you can take right now and clear signals for when professional help is needed.
Why Gums Swell in the First Place
The most common cause is plaque, a sticky, colorless film of bacteria that forms on your teeth after eating sugars and starches. When plaque isn’t removed through brushing and flossing, it hardens into tartar (also called calculus) along and beneath the gumline. Tartar acts like a shield for bacteria, making it nearly impossible to clean away with a toothbrush alone. The longer plaque and tartar sit against your gums, the more inflamed, swollen, and prone to bleeding they become.
This early stage of gum disease is called gingivitis. It’s reversible, but left untreated, it can progress to periodontitis, where inflammation extends deeper and starts affecting the bone supporting your teeth. Other triggers for swollen gums include hormonal changes during pregnancy, certain medications that reduce saliva flow, vitamin deficiencies, and infections like abscesses.
Salt Water Rinses
A salt water rinse is the simplest first step. Dissolve half a teaspoon of salt in a cup of warm water, then swish it around your mouth for 30 seconds before spitting. Salt water reduces inflammation and lowers the bacterial load in your mouth, which helps swollen tissue start to calm down. You can do this two to three times a day, especially after meals. It won’t fix the underlying cause on its own, but it creates a cleaner environment for your gums to heal.
Improving Your Brushing and Flossing
This sounds obvious, but technique matters more than most people realize. Brush twice a day with a soft-bristled toothbrush, angling the bristles at about 45 degrees toward the gumline so they sweep plaque out from where it collects. Hard bristles or aggressive scrubbing can actually worsen swelling by damaging already irritated tissue.
Flossing is where the real difference happens. Plaque loves the tight spaces between teeth that a toothbrush can’t reach. If you haven’t been flossing regularly, your gums may bleed the first few days you start. That’s normal. The bleeding typically decreases as inflammation goes down. If flossing with traditional string feels difficult, interdental brushes or a water flosser can be just as effective at clearing debris from between teeth.
Managing Pain and Inflammation
If your swollen gums are painful, over-the-counter pain relievers work well. The American Dental Association recommends combining ibuprofen and acetaminophen for dental pain: 400 mg of ibuprofen (two standard pills) taken alongside 500 mg of acetaminophen. Ibuprofen is an anti-inflammatory, so it directly targets the swelling, while acetaminophen adds pain relief through a different mechanism. For most people, this combination works as well as prescription painkillers without the risks that come with stronger medications.
Applying a cold compress to the outside of your cheek near the swollen area can also reduce inflammation. Use it in intervals of 15 to 20 minutes.
Vitamin C and Gum Health
Low vitamin C levels are directly linked to gum problems. A review of 15 studies covering over 1,100 people, combined with CDC survey data from more than 8,200 participants, found that people with low vitamin C in their bloodstream had a significantly higher risk of gum bleeding, even with gentle probing. Vitamin C plays a key role in tissue repair and collagen production, both essential for healthy gums.
The recommended daily intake for adult men is 90 mg, and for women it’s 75 mg, though researchers suggest aiming for 100 to 200 mg daily for better gum health. You can get there through foods like bell peppers, kiwis, oranges, strawberries, and kale, or with a simple supplement. This won’t replace brushing and flossing, but if your diet has been lacking in fruits and vegetables, it could be a missing piece.
Antibacterial Mouthwashes
For mild gingivitis, your dentist may recommend a prescription-strength antibacterial mouthwash containing chlorhexidine. A large Cochrane review found high-quality evidence that chlorhexidine rinses significantly reduce both gingivitis and plaque levels after four to six weeks of use. The effect was clearest in people with mild gum inflammation.
There’s a trade-off, though. Chlorhexidine commonly causes extrinsic tooth staining, meaning the surface of your teeth may develop brown or yellowish discoloration. Other reported side effects include altered taste, oral soreness, and a burning sensation on the tongue. For these reasons, it’s typically used as a short-term treatment rather than an everyday rinse. Over-the-counter antiseptic mouthwashes are a gentler option for daily use, though they won’t be as potent.
When You Need a Professional Cleaning
If your gum swelling hasn’t improved after two weeks of consistent home care, it’s time to see a dentist. Swelling that persists usually means tartar has built up below the gumline, in places you simply can’t reach with a toothbrush or floss.
The standard treatment is scaling and root planing, often called a deep cleaning. Your dentist or hygienist numbs your gums with a local anesthetic, then uses hand instruments or ultrasonic tools to scrape away plaque and tartar from both above and below the gumline. The root planing part smooths the surfaces of tooth roots, which makes it harder for bacteria to reattach. The whole process treats sore and bleeding gums, and for people with mild to moderate gum disease, it’s the single most effective intervention for preventing tooth loss. There is no home remedy that substitutes for this, because tartar physically bonds to the tooth surface and cannot be brushed or rinsed away.
After a deep cleaning, you can expect some tenderness and sensitivity for a few days. Most people notice their gums looking and feeling noticeably better within one to two weeks, as long as they maintain good home care afterward.
Signs That Need Urgent Attention
Most gum swelling is not an emergency, but certain symptoms signal a more serious infection. If you develop a fever along with facial swelling, that combination suggests the infection may be spreading beyond the gum tissue into the jaw or surrounding areas. Difficulty breathing or swallowing alongside gum swelling is a reason to go to an emergency room, as this can indicate the infection has reached the throat or neck. A visible pus-filled bump on your gums, throbbing pain that radiates to the jaw or ear, or a sudden foul taste in your mouth (from a draining abscess) all warrant a prompt dental visit rather than watchful waiting at home.