Elevating your feet above heart level for 15 minutes, three to four times a day, is the fastest way to bring swelling down. But if your feet swell regularly, you’ll get the best results by combining elevation with movement, compression, and a few dietary changes that target the root cause: excess fluid trapped in your tissues.
Swelling in the feet happens when fluid leaks from small blood vessels and accumulates in surrounding tissue. Gravity pulls that fluid downward throughout the day, and your veins have to work against it to push blood back toward your heart. When the pressure inside those veins gets too high, or when you’ve been sitting or standing for hours without moving, fluid seeps out faster than your body can reabsorb it. The result is puffy, tight, uncomfortable feet.
Elevate Your Feet the Right Way
Elevation works because it reverses gravity’s effect on fluid pooling. The key detail most people miss: your feet need to be above your heart, not just propped on an ottoman. Lying on a couch or bed with your legs on a stack of pillows gets the angle right. Sitting in a recliner with your feet at hip height doesn’t do nearly as much.
Aim for about 15 minutes per session, repeated three to four times throughout the day. If you work at a desk, even a midday session during lunch can make a noticeable difference by evening. Consistency matters more than duration here. Four short sessions beat one long one.
Use Simple Foot and Ankle Exercises
Your calf muscles act as a pump for the veins in your lower legs. Every time they contract, they squeeze blood upward toward your heart and pull fluid out of your feet. When you sit still for hours, that pump shuts off.
Ankle pumps are the easiest way to restart it. Sit or lie with your legs extended, then alternate between pointing your toes toward your knees and away from you, moving as far as you comfortably can in each direction. Do this for two to three minutes, and repeat two to three times per hour when you’re sedentary. You can do them at your desk, on a plane, or while watching TV. Some soreness is normal, but stop if you feel increased pain.
Walking is even better if you’re able. A 10-minute walk engages the full calf pump and gets your circulation moving in a way that no stationary exercise can fully replicate. If swelling tends to build up during your workday, short walks every hour or two can prevent it from accumulating in the first place.
Try an Epsom Salt Soak
Soaking your feet in warm water with Epsom salt is a popular home remedy, and there’s some evidence behind it. A study on pregnant women with foot swelling found that soaking in Epsom salt water for 20 minutes once a day for three days reduced swelling by about 74%, compared to 55% for exercise alone. The study used about 30 grams (roughly two tablespoons) of Epsom salt dissolved in one liter of lukewarm water.
The warm water itself helps by promoting circulation, and magnesium sulfate (the active ingredient in Epsom salt) may help draw out excess fluid. Lukewarm is the right temperature. Water that’s too hot can actually increase swelling by dilating blood vessels further.
Wear Compression Socks
Compression socks apply graduated pressure to your lower legs, tightest at the ankle and looser as they go up. This helps push fluid back into circulation instead of letting it pool in your feet.
For everyday swelling from prolonged sitting or standing, mild compression (15 to 20 mmHg) is a good starting point. These are widely available without a prescription and are the type commonly sold for travel or office use. If you have more persistent swelling, moderate compression (20 to 30 mmHg) is the most commonly recommended level for ongoing management. Higher levels (30 to 40 mmHg and above) are reserved for more significant medical conditions and typically require a clinical fitting.
Put compression socks on first thing in the morning before swelling builds up. If your feet are already swollen, elevate them for 15 minutes first, then put the socks on. Wearing them on already-puffy feet can feel uncomfortably tight and won’t work as effectively.
Cut Back on Sodium
Sodium causes your body to hold onto water. The more salt you eat, the more fluid your kidneys retain, and that extra fluid has to go somewhere. It often ends up in your feet and ankles.
For people dealing with edema, Georgetown University’s nephrology department recommends keeping daily sodium intake between roughly 1,375 and 1,800 milligrams. For context, a single fast-food meal can easily contain 1,500 milligrams or more, and the average American consumes well over 3,000 milligrams per day. The biggest sources aren’t the salt shaker on your table. They’re processed foods, restaurant meals, canned soups, deli meats, and condiments like soy sauce.
Reading nutrition labels is the most practical step. Look for the sodium line and compare brands. Swapping a high-sodium canned soup for a low-sodium version, or rinsing canned beans before eating them, can cut hundreds of milligrams from a single meal.
Eat More Potassium-Rich Foods
Potassium works as sodium’s counterpart. While sodium holds fluid outside your cells, potassium maintains fluid balance inside them. A higher potassium intake helps your kidneys excrete more sodium, which in turn reduces the amount of water your body retains.
Good sources include potatoes, beans and lentils, spinach, winter squash (like butternut or acorn), bananas, and dried fruits such as raisins and apricots. You don’t need supplements for this. Adding one or two extra servings of these foods per day gives most people a meaningful boost.
Drink Enough Water
This sounds counterintuitive, but not drinking enough water can actually make swelling worse. When you’re dehydrated, your kidneys compensate by retaining more sodium and water, which leads to more fluid buildup in your tissues. Staying well-hydrated signals your body that it can safely release excess fluid.
A general target is 1.5 to 2 liters of water per day, though your needs will vary based on body size, activity level, and climate. If your urine is pale yellow, you’re in good shape. Dark yellow means you likely need more.
When Swelling Is a Warning Sign
Most foot swelling is harmless and responds well to the strategies above. But certain patterns signal something more serious.
Swelling in only one foot or leg, especially when paired with pain or cramping in the calf, skin that looks red or purple, or a feeling of warmth in that leg, can indicate a deep vein thrombosis (a blood clot in a deep vein). This requires urgent medical evaluation. Blood clots can sometimes occur without noticeable symptoms, which is why new, unexplained, one-sided swelling deserves attention even without pain.
If you experience sudden shortness of breath, chest pain that worsens with deep breathing, dizziness, a rapid pulse, or coughing up blood alongside leg swelling, these are signs of a pulmonary embolism, which is a medical emergency. Swelling that develops gradually in both feet and is accompanied by increasing breathlessness, particularly when lying down, can point to a heart or kidney issue that needs investigation.
Foot swelling that comes and goes with long days, warm weather, or salty meals is almost always manageable at home. Swelling that’s new, persistent, worsening, or one-sided tells a different story.