A swollen gum usually responds well to a combination of home care and, if needed, a dental visit. The right approach depends on whether the swelling is localized to one spot (often an infection or injury) or spread across a larger area of your gums (more likely gingivitis or a hormonal change). Either way, there are practical steps you can take today to reduce pain and inflammation while you figure out the underlying cause.
Why Your Gum Is Swollen
The most common reason for gum swelling is plaque buildup irritating the tissue along your gumline. When plaque sits on your teeth long enough, it triggers an inflammatory response: your gums turn red, puff up, and may bleed when you brush. This is gingivitis, and it accounts for the majority of generalized gum swelling.
If the swelling is concentrated around a single tooth, the cause is more likely a dental abscess (a pocket of infection), a piece of food trapped under the gumline, or trauma from biting something hard. Abscesses tend to feel like a firm, painful bump that may throb or produce a bad taste if it starts draining.
Hormonal shifts can also be responsible. During pregnancy, rising levels of estrogen and progesterone increase blood flow to the gums and amplify your body’s reaction to plaque. This makes gums more prone to swelling, soreness, and bleeding, even if your oral hygiene hasn’t changed. A history of gum disease, frequent vomiting from morning sickness, or a diet high in sugar and acidic foods raises the risk further.
Other triggers include mouth breathing (which dries out gum tissue), certain medications that cause gum overgrowth, and vitamin deficiencies, particularly vitamin C.
Start With a Saltwater Rinse
A warm saltwater rinse is the simplest and most effective first step. Salt draws moisture out of the swollen cells in your gum tissue, which directly reduces puffiness. It also creates an environment that’s harder for bacteria to survive in, so it works as both an anti-inflammatory and a mild antiseptic.
Mix one teaspoon of salt into eight ounces of warm water and swish gently for 30 seconds before spitting it out. If your mouth is tender and the solution stings, cut back to half a teaspoon for the first day or two. Repeat two to three times a day, especially after meals.
Use a Cold Compress for Pain and Swelling
If the swelling has spread enough to cause visible puffiness on the outside of your face, or if the area is throbbing, apply an ice pack or cold compress to the outside of your cheek. Keep it on for 10 to 20 minutes at a time with a thin cloth between the ice and your skin. Remove it for at least 20 minutes before reapplying. Cold constricts blood vessels in the area, which slows inflammation and numbs the pain.
Over-the-Counter Pain Relief
For mild gum pain, ibuprofen (200 to 400 mg every six hours) is a strong first choice because it reduces both pain and inflammation. Acetaminophen (500 to 650 mg every six hours) works well too, though it targets pain without the anti-inflammatory effect. Keep your total acetaminophen from all sources under 3,000 mg per day.
For moderate to severe pain, taking ibuprofen and acetaminophen together is more effective than either one alone. This combination performs as well as or better than opioid-based painkillers for dental pain. Take them on a schedule rather than waiting for the pain to return, at least for the first 24 hours. Most dental pain responds to this approach within three to five days.
Gentle but Thorough Oral Hygiene
It’s tempting to avoid brushing a sore, swollen area, but that lets plaque accumulate and makes the problem worse. Switch to a soft-bristled toothbrush and brush gently along the gumline twice a day. Floss carefully around the swollen spot once a day to dislodge any trapped food or plaque. If regular floss feels too aggressive, a water flosser or interdental brush can be easier on inflamed tissue.
Avoid alcohol-based mouthwashes while your gums are irritated. They can dry out and further aggravate the tissue. A gentle, alcohol-free antiseptic rinse is a better option if you want something beyond saltwater.
What a Dentist Can Do
If your swelling doesn’t improve within a few days of home care, or if it keeps coming back, a dentist can identify the root cause and treat it directly. For gingivitis or early gum disease, the standard treatment is scaling and root planing. This is essentially a deep cleaning: the dentist removes plaque and tartar from above and below the gumline using hand instruments or ultrasonic tools, then smooths the tooth roots so bacteria have fewer places to attach. It’s like a regular cleaning but reaches deeper beneath the gums. Antibiotics may be placed around the tooth roots or prescribed afterward to clear any remaining infection.
If an abscess is causing the swelling, the dentist will drain it and may prescribe antibiotics. Depending on the severity, you might need a root canal to save the tooth or, in some cases, an extraction.
Signs That Need Urgent Attention
Most gum swelling is manageable and not dangerous, but certain symptoms signal that an infection may be spreading. Get emergency care if you experience difficulty breathing, speaking, or swallowing. A swollen or painful eye, sudden vision changes, extensive swelling inside your mouth, or trouble opening your mouth are also red flags that require immediate treatment. These signs suggest the infection has moved beyond the gum tissue, and delays can become dangerous quickly.
A fever alongside gum swelling also warrants a same-day call to your dentist. Fever means your body is fighting an infection that home remedies alone won’t resolve.