If your gum is swollen, start with a warm saltwater rinse and a cold compress to bring down inflammation while you figure out the cause. Most gum swelling traces back to plaque buildup and early gum disease (gingivitis), which is the single most common cause. But swelling can also signal an abscess, a trapped piece of food, hormonal changes, or a nutritional deficiency, and each situation calls for a slightly different response.
Quick Relief at Home
A saltwater rinse is the simplest first step. Mix half a teaspoon of salt into a cup of warm water, swish it gently around the swollen area for 30 seconds, and spit it out. If that doesn’t sting, you can increase to a full teaspoon of salt per eight ounces of water. Repeat this three to four times throughout the day. Salt draws fluid out of inflamed tissue and creates an environment that’s harder for bacteria to thrive in.
If the swelling is visible on the outside of your face or jaw, hold a cold pack or bag of ice wrapped in a thin cloth against your cheek for 10 to 20 minutes at a time. Remove it, wait at least 20 minutes, and repeat. This won’t fix the underlying problem, but it reduces pain and limits how much the tissue swells.
For pain, ibuprofen works better than acetaminophen for gum swelling because it targets both pain and inflammation. A standard dose of 400 mg every six hours is effective for mild dental pain. You can also take acetaminophen alongside ibuprofen for moderate pain, as the two work through different pathways. Just keep your total acetaminophen from all sources under 3,000 mg per day.
Why Your Gum Is Swollen
Gingivitis accounts for the majority of swollen gums. It happens when plaque, that sticky bacterial film on your teeth, irritates the gum tissue and triggers inflammation. The gums turn red, puff up, and often bleed when you brush. The good news is that gingivitis is fully reversible. Most mild cases improve within 10 to 14 days of consistent brushing, flossing, and a professional cleaning.
Localized swelling around a single tooth points to a different set of causes. An abscessed tooth creates a pocket of pus near the root or in the surrounding gum, producing intense, throbbing pain that can radiate into your jaw. A cavity that has reached the inner pulp of a tooth can do the same. Something as simple as a popcorn hull or seed wedged beneath the gumline can also cause a painful, isolated bump.
Hormonal shifts are another common trigger, especially during pregnancy. Between 60% and 75% of pregnancies involve some degree of gingivitis. Rising estrogen and progesterone increase blood flow to the gums and make them more sensitive to plaque, so even a small amount of buildup causes more swelling than it normally would. Puberty and menopause produce similar effects through their own hormonal changes.
Braces and ill-fitting dentures can irritate gum tissue directly or create hard-to-clean spots where plaque accumulates. And certain nutritional deficiencies quietly set the stage for gum problems. Vitamin C is essential for collagen production in gum tissue; even a mild deficiency makes gums more prone to swelling and bleeding. Vitamin B12 deficiency causes gum sensitivity and mouth ulcers, while low vitamin D increases gum inflammation by weakening your immune response. Folic acid deficiency slows the growth of new gum cells and delays healing.
How to Care for Swollen Gums While They Heal
It might seem counterintuitive, but you should keep brushing and flossing even when your gums are swollen and bleeding. Avoiding the area lets plaque build up further and makes the problem worse. Switch to a soft-bristle toothbrush if you don’t already use one. If you tend to brush hard, an electric toothbrush with a pressure sensor can help you ease up.
For flossing, start with about 24 inches of floss. Wrap it around both middle fingers, leaving about two inches of working length between them. Slide the floss gently between teeth using an up-and-down motion along the curve of each tooth rather than snapping it straight down into the gum. Use a clean section for each gap. If traditional floss feels too difficult with swollen gums, a water flosser or floss picks can make the process easier to stick with.
Avoid very hot or very cold foods and drinks around the swollen area, and stay away from crunchy, sharp foods like chips or hard bread that could poke or scratch the tissue. If you smoke, this is one of the clearest reasons to stop or cut back: smoking restricts blood flow to gums and dramatically slows healing.
When You Need Professional Treatment
If your gum swelling doesn’t start improving within a week of consistent home care, you likely need a dental visit. The most common professional treatment for swollen gums caused by plaque and tartar is scaling and root planing, essentially a deep cleaning. It works like a regular cleaning but reaches beneath the gumline. Your dentist uses hand instruments or ultrasonic tools to remove hardened tartar from tooth surfaces and smooth the roots so gums can reattach. They may apply antibiotics around the roots or prescribe a short course of oral antibiotics to prevent infection afterward.
For an abscessed tooth, the dentist needs to drain the infection and treat the source, which often means a root canal or extraction depending on how much damage the tooth has sustained. Antibiotics alone won’t resolve an abscess; the trapped pus needs a way out.
Red Flags That Need Immediate Attention
Most gum swelling is not an emergency, but certain combinations of symptoms mean the infection may be spreading beyond your mouth. Go to an emergency room if you have a fever along with facial swelling, especially if you can’t reach a dentist. Difficulty breathing or difficulty swallowing with gum or facial swelling also warrants an ER visit. These symptoms suggest the infection has moved deeper into the jaw, throat, or neck, and that progression can become dangerous quickly.
Other signs that warrant a prompt dental appointment, though not necessarily the ER: pus draining from the gum, a foul taste in your mouth that won’t go away, swelling that keeps getting worse over two to three days despite home care, or a loose tooth in the swollen area. Pain that wakes you up at night or prevents you from eating also means you shouldn’t wait for a routine appointment.