Painful, swollen gums are most often caused by a buildup of bacteria along the gumline, and the good news is that mild cases typically improve within 10 to 14 days with the right care. Treatment depends on what’s behind the swelling, ranging from simple salt water rinses and better brushing habits to professional deep cleanings for more advanced inflammation.
What’s Causing the Swelling
The most common cause is gingivitis, an early stage of gum disease marked by red, puffy gums that bleed when you brush or floss. At this stage, the inflammation is limited to the soft tissue and hasn’t damaged the bone underneath. Plaque, a sticky film of bacteria, collects where your teeth meet your gums and triggers your body’s inflammatory response.
If gingivitis goes untreated, it can progress to periodontitis. This is where the gums start pulling away from the teeth, forming pockets that can reach several millimeters deep, sometimes more than a centimeter. The inflammation begins attacking the bone and connective tissue that hold your teeth in place, potentially exposing the roots. Periodontitis requires professional treatment and won’t resolve on its own.
Other causes of swollen gums have nothing to do with oral hygiene. Hormonal shifts during pregnancy, puberty, and menopause increase blood flow to gum tissue and make it more permeable, so even a normal amount of plaque can trigger exaggerated swelling. Certain medications, particularly blood pressure drugs like amlodipine and nifedipine, anti-seizure medications, and immune-suppressing drugs like cyclosporine, can cause gum tissue to overgrow. Vitamin C deficiency is a less common but real cause: plasma levels below 5.5 micrograms per milliliter are associated with gum overgrowth, bleeding, and inflammation.
Home Remedies That Actually Help
Salt Water Rinses
A warm salt water rinse is one of the simplest ways to reduce gum pain and swelling. Dissolve about one teaspoon of table salt (roughly 6 grams) in 300 to 350 milliliters of warm water, which is a little over a cup. This creates a hypertonic solution that draws fluid out of swollen tissue and helps flush bacteria from irritated gums. Swish gently for 30 seconds, then spit. You can repeat this two to three times a day.
Cold Compress
Applying a cold pack to the outside of your cheek near the swollen area for 15 to 20 minutes can numb the pain and reduce inflammation. Wrap ice in a cloth rather than applying it directly to skin. This works best for acute flare-ups or after dental procedures.
Over-the-Counter Pain Relief
Ibuprofen is generally more useful than acetaminophen for gum swelling because it reduces inflammation in addition to blocking pain. Acetaminophen handles the pain but won’t do much for the swelling itself. Follow the dosage instructions on the package, and avoid placing aspirin directly on gum tissue, which can cause a chemical burn.
Improved Brushing and Flossing
If your gums are swollen, you might be tempted to avoid brushing the sore area. This makes things worse. Use a soft-bristled toothbrush and brush gently along the gumline twice a day. Floss daily, easing the floss between teeth rather than snapping it against the gums. Some bleeding during the first few days of a new flossing habit is normal and usually stops within a week or two as the inflammation decreases.
When to Get Professional Treatment
If your gums are still swollen and painful after two weeks of consistent home care, or if the swelling is severe, you likely need a professional cleaning. For gingivitis, a standard dental cleaning to remove plaque and hardened tartar (which you can’t remove at home) is usually enough. Most cases of mild gingivitis improve within 10 to 14 days after a professional cleaning combined with a good brushing routine.
For periodontitis, the standard treatment is scaling and root planing, often called a deep cleaning. This involves removing bacteria and tartar from below the gumline and smoothing the tooth roots so the gums can reattach. Expect the treated area to feel tender for about four to seven days afterward. Some bleeding while brushing is normal and typically subsides within two weeks. Full gum healing generally takes four to six weeks with proper aftercare.
Your dentist may also prescribe a chlorhexidine mouthwash to control bacteria during healing. This is typically used for about seven days. Longer use can stain teeth and alter your sense of taste, so it’s not meant as a permanent solution. Gel formulations cause less staining than liquid rinses.
Pregnancy and Hormonal Swelling
Pregnancy gingivitis is extremely common and peaks during the second trimester. Progesterone increases the permeability of blood vessels in gum tissue, meaning more blood flow, more swelling, and more bleeding, even when your oral hygiene hasn’t changed. The hormone also slows tissue repair and shifts the balance of bacteria under the gumline toward more inflammatory species.
The treatment approach is the same as for standard gingivitis: thorough brushing, flossing, and professional cleanings. Scheduling an extra dental cleaning during the second trimester is a practical step. Scaling and root planing are considered safe during pregnancy and can significantly reduce bacterial load. The swelling typically improves after delivery as hormone levels normalize.
Medication-Related Gum Swelling
If your gums started swelling after beginning a new medication, the drug itself may be the cause. Blood pressure medications in the calcium channel blocker family (amlodipine, nifedipine, diltiazem, verapamil), anti-seizure drugs, and immunosuppressants like cyclosporine are the most common culprits. These medications can cause gum tissue to gradually overgrow, sometimes to the point of partially covering the teeth.
Don’t stop taking a prescribed medication on your own. Talk to your prescribing doctor about whether an alternative drug is available. In the meantime, meticulous oral hygiene and regular dental cleanings can slow the overgrowth. In severe cases, a dentist may need to surgically trim the excess tissue.
Signs of Something More Serious
Most gum swelling is uncomfortable but not dangerous. A dental abscess, however, is a bacterial infection that requires urgent treatment. Suspect an abscess if your gum swelling is accompanied by a fever, intense throbbing pain that doesn’t respond to over-the-counter painkillers, or difficulty opening your mouth to chew. A visible pus-filled bump on the gum is another telltale sign.
Seek emergency care if you develop significant swelling in the floor of your mouth, have difficulty breathing, or notice swelling spreading toward your eye or affecting your vision. These are signs the infection may be spreading beyond the tooth and gums.
Nutritional Factors Worth Checking
Vitamin C plays a direct role in maintaining healthy gum tissue. Severe deficiency, historically associated with scurvy, causes spontaneous gum bleeding and tissue overgrowth. You don’t need to be severely deficient to notice effects on your gums: even mildly low levels have been linked to gum inflammation and poor tissue repair. People at higher risk include smokers, those with very restricted diets, and individuals with conditions that impair nutrient absorption. Citrus fruits, bell peppers, strawberries, and broccoli are all rich sources. If you suspect a deficiency, a simple blood test can check your levels.