A swollen foot usually responds well to a few simple measures you can start at home: elevating it above heart level, applying ice, and reducing your salt intake. Most cases stem from fluid buildup in the tissues rather than a serious injury, and the swelling resolves within hours to days once you address the cause. That said, some patterns of swelling signal something more urgent, so knowing the difference matters.
Why Your Foot Is Swollen
Foot swelling falls into two broad categories. The first is localized swelling from an injury, insect bite, or infection, where your immune system sends extra fluid to the area as part of healing. The second is generalized edema, where fluid accumulates because of something systemic: a high-salt diet, prolonged sitting or standing, pregnancy, medication side effects, or an underlying condition affecting your heart, kidneys, liver, or thyroid.
Some of the most common everyday triggers include long flights or car rides, standing for hours at work, eating processed or salty foods, and drinking alcohol. These causes are temporary and tend to resolve on their own with a little help. Chronic or recurring swelling, especially in both feet, points to something worth investigating with a doctor.
Elevate, Ice, and Rest
The fastest way to bring down a swollen foot is to get it above the level of your heart. Lie on your back and prop your foot on two or three pillows, or rest it on the arm of a couch. Gravity pulls the trapped fluid back toward your core, so the higher you can comfortably keep it, the better. Try to maintain this position for 20 to 30 minutes at a time, several times a day.
If the swelling followed a twist, bump, or overuse injury, add ice. Wrap a bag of ice or frozen vegetables in a thin towel and apply it for 10 to 20 minutes every hour or two. The barrier between the ice and your skin prevents frostbite. Avoid putting weight on the foot if it hurts, and consider wrapping it lightly with an elastic bandage for gentle compression while you rest.
Compression Socks and Stockings
Compression socks apply graduated pressure that helps push fluid up and out of your lower legs. Over-the-counter options in the 15 to 20 mmHg range provide mild support and work well for swelling caused by travel, prolonged standing, or mild fluid retention. A 20 to 30 mmHg stocking is the most commonly prescribed level for moderate, recurring lower-leg edema. Higher pressures (30 to 40 mmHg and above) are reserved for more severe conditions like significant lymphedema and typically require a clinical fitting.
Put compression socks on first thing in the morning, before gravity has had a chance to pull fluid into your feet. They should feel snug but not painful, and you shouldn’t wear them to bed unless specifically told to.
Cut Back on Sodium
Salt makes your body hold onto water, and excess sodium is one of the most underestimated causes of puffy feet and ankles. The American Heart Association recommends staying under 1,500 mg of sodium per day, though many guidelines use 2,000 mg as a practical target. For context, a single fast-food meal can contain over 1,500 mg on its own.
The biggest sodium sources aren’t the salt shaker on your table. They’re processed meats, canned soups, cheese, chips, frozen meals, and restaurant food. Swapping these for whole foods, cooking at home more often, and seasoning with herbs instead of salt can make a noticeable difference in swelling within a few days. Drinking plenty of water also helps your kidneys flush excess sodium rather than storing it in your tissues.
Move Your Feet and Ankles
Sitting or standing in one position lets fluid pool in your lower extremities. Even small movements can counteract this. Ankle pumps are the simplest exercise: point your toes toward the floor, then pull them back up toward your shin. Repeat 5 to 10 times. This contracts your calf muscles, which act as a pump to push fluid back up through your veins and lymphatic system.
If you work at a desk, set a reminder to stand and walk for a minute or two every hour. On long flights or road trips, flex your feet regularly and get up to move whenever possible. A short walk, even just around your living room, is more effective at reducing swelling than staying still with your foot elevated for hours on end, because muscle contractions actively drive drainage.
Epsom Salt Soaks
Soaking your feet in warm water with Epsom salt is a popular home remedy, and there is some evidence it helps. A study comparing Epsom salt soaks to plain warm water found that the salt solution produced measurably greater pain relief and functional improvement, at least in people with joint-related discomfort. The typical approach is about a quarter cup of Epsom salt dissolved in comfortably warm water, soaking for 15 to 20 minutes.
Warm soaks can feel soothing and may temporarily reduce stiffness, but they won’t address the underlying cause of edema. If your swelling is from an acute injury, stick with cold therapy instead, since warmth can increase blood flow and make inflammatory swelling worse in the first 48 to 72 hours.
Medications That Cause Swollen Feet
If your foot swelling appeared or worsened after starting a new medication, the drug itself may be the culprit. Blood pressure medications called calcium channel blockers are among the most common offenders. Nearly half of people taking them experience some degree of foot and ankle swelling. Other categories linked to peripheral edema include certain other blood pressure drugs, hormone therapies (corticosteroids, estrogen, testosterone), seizure medications like gabapentin and pregabalin, some antidepressants, the diabetes drug pioglitazone, and over-the-counter anti-inflammatory painkillers like ibuprofen and naproxen.
Don’t stop a prescribed medication on your own, but do bring up the swelling at your next appointment. Your doctor may be able to adjust the dose or switch to an alternative that doesn’t cause the same side effect.
Swelling During Pregnancy
Some degree of foot and ankle swelling is completely normal in pregnancy, especially in the third trimester, as your body retains more fluid and your growing uterus puts pressure on the veins returning blood from your legs. Elevation, compression socks, and staying active all help.
What’s not normal is sudden, severe swelling, particularly if it appears in your face and hands along with your feet. This pattern can signal preeclampsia, a serious blood pressure condition that develops after 20 weeks. Sudden weight gain, persistent headaches, vision changes, or upper abdominal pain alongside new swelling warrant immediate medical attention.
Warning Signs That Need Urgent Attention
Most foot swelling is harmless, but a few scenarios require prompt evaluation. Swelling in only one leg, especially when accompanied by pain or cramping in the calf, skin that looks red or purple, and a feeling of warmth in that leg, can indicate a deep vein thrombosis (DVT), a blood clot in a deep vein. DVT can sometimes occur without obvious symptoms, which is why unexplained one-sided swelling deserves a closer look.
Swelling that pits (leaves a dent when you press your finger into it) and doesn’t improve with elevation, swelling accompanied by shortness of breath or chest pain, and swelling that worsens progressively over days or weeks all point to conditions involving the heart, kidneys, or liver that need medical workup rather than home treatment alone.