Swollen feet usually respond well to a combination of elevation, movement, and simple lifestyle adjustments. Most cases stem from fluid pooling in the lower extremities after prolonged sitting or standing, excess sodium intake, or heat exposure. The strategies below work for everyday, mild-to-moderate swelling. Sudden swelling in one leg, chest pain, or shortness of breath are different situations that need immediate medical attention.
Elevate Your Feet Above Your Heart
Gravity is the simplest tool you have. When you sit or stand for hours, fluid naturally collects in your feet and ankles because it has nowhere else to go. Elevating your legs reverses that flow, letting fluid drain back toward your core.
The key detail most people miss: your feet need to be above the level of your heart, not just propped on an ottoman. Lie on a couch or bed and stack pillows under your calves and feet until they’re higher than your chest. Aim for about 15 minutes per session, three to four times a day. Even one session after a long day on your feet can make a noticeable difference, but consistency throughout the day works best.
Move Your Ankles and Calves Regularly
Your calf muscles act as a pump for the veins in your lower legs. Every time you flex your foot or rise onto your toes, the muscles squeeze blood and fluid upward against gravity. When you sit still for hours, that pump shuts off, and fluid accumulates.
The simplest exercise is ankle dorsiflexion: pull your toes toward your shin, then point them away. Repeating this 10 times activates the calf pump enough to push a meaningful volume of fluid back into circulation. Do a set every 30 to 60 minutes if you’re desk-bound or on a long flight. Calf raises (standing and lifting your heels off the ground) are another effective option. Research on patients with chronic venous insufficiency found that supervised calf exercises combined with daily unsupervised movement improved venous capacity and reduced leg symptoms over time.
Alternate Between Sitting and Standing
Both prolonged sitting and prolonged standing cause swelling, just through slightly different mechanisms. Sitting compresses the veins behind the knees, while standing lets gravity pull fluid downward for hours. The fix is switching positions frequently.
A study published in Biology compared 20-minute blocks of continuous sitting, continuous standing, and alternating between the two every minute. The alternating condition prevented leg swelling significantly better than either position alone. You don’t need to follow a rigid one-minute rotation at work, but breaking up any single position every 20 to 30 minutes with a short walk, a set of calf raises, or a switch from sitting to standing keeps the calf pump active and fluid moving.
Cut Back on Sodium
Sodium makes your body hold onto water, and that extra fluid often shows up first in the feet and ankles. The average American takes in about 3,700 mg of sodium per day. The American Heart Association recommends no more than 1,500 mg daily, and most guidelines for people dealing with fluid retention suggest staying under 2,000 mg.
The biggest sources aren’t the salt shaker on your table. Processed foods, restaurant meals, canned soups, deli meats, and condiments account for most dietary sodium. Reading nutrition labels and cooking more meals at home are the two most effective ways to bring your intake down. If your feet tend to swell after eating out or after a heavy takeout meal, sodium is likely a major contributor.
Stay Hydrated
It sounds counterintuitive to drink more water when your feet are swollen, but dehydration actually makes the problem worse. When your body senses it isn’t getting enough fluid, it holds onto sodium and water more aggressively. Drinking adequate water signals your kidneys to release excess sodium and fluid. Your kidneys begin producing extra urine about 30 minutes after you drink a large glass of water, with peak output around an hour later. That process flushes the very sodium and waste products that contribute to swelling.
Use Compression Socks
Compression socks apply graduated pressure to your lower legs, tightest at the ankle and looser toward the knee. This gentle squeeze prevents fluid from settling into the tissues and helps push it back up through the veins. They’re especially useful if you stand or sit for long stretches at work, travel frequently, or notice your feet swell more as the day goes on.
For general swelling, over-the-counter compression socks in the 15 to 20 mmHg range are a good starting point. If you have more persistent edema or a condition like chronic venous insufficiency, a higher pressure level (20 to 30 mmHg) may be more effective, though it’s worth getting sized properly so the socks don’t bunch or cut into your skin. Put them on first thing in the morning before swelling starts, not after your feet have already ballooned.
Try an Epsom Salt Soak
Soaking your feet in warm water with Epsom salt (magnesium sulfate) is a classic home remedy, and there is a basic physiological reason it can help. When the salt dissolves, it raises the concentration of dissolved particles in the water around your feet. This creates an osmotic gradient that pulls some water out through the skin, temporarily reducing puffiness and bloating. The effect is modest and short-lived, but it can bring comfort, especially combined with other strategies. Dissolve about half a cup of Epsom salt in a basin of warm (not hot) water and soak for 15 to 20 minutes.
Massage Fluid Toward Your Heart
Simple self-massage can manually push trapped fluid out of swollen tissue. The technique borrows from lymphatic drainage: use light, sweeping strokes that always move upward, from the toes toward the ankle, then from the ankle toward the knee. Start at the top of the swollen area and work downward in stages, stroking each section upward before moving to the next lower section. When you reach the foot and toes, stroke upward from there as well. Flexing and extending your ankle during the massage helps open drainage pathways. Firm pressure isn’t needed. Light, rhythmic strokes are more effective for moving lymphatic fluid than deep kneading.
Avoid Heat Exposure
Hot weather is a common and underappreciated trigger for foot swelling. Heat causes blood vessels near the skin’s surface to widen so your body can release warmth. That dilation allows more fluid to leak from the vessels into surrounding tissue, especially in the feet and ankles where gravity already encourages pooling. This is called heat edema, and it’s the mildest form of heat-related illness. It’s particularly common in people who aren’t yet acclimated to summer temperatures or who stand for long periods in the heat.
Staying in cooler environments when possible, wearing breathable shoes, and avoiding hot baths or saunas when your feet are already swollen all help. If you work outdoors in summer, combining compression socks with frequent breaks in the shade and regular ankle exercises can offset much of the heat-related swelling.
When Swelling Is a Warning Sign
Most foot swelling is harmless and responds to the strategies above. But certain patterns deserve prompt attention. Swelling in only one leg, particularly if it’s accompanied by pain, redness, or warmth, can signal a deep vein thrombosis (a blood clot). This is especially worth considering after a long flight or period of immobility. Swelling in both feet combined with shortness of breath, chest pain, or an irregular heartbeat can indicate fluid buildup in the lungs or a heart-related problem. These situations need medical evaluation quickly, not home remedies.
Persistent swelling that doesn’t improve with elevation and movement over several days, or swelling that leaves a lasting dent when you press your finger into the skin, is also worth bringing up with a healthcare provider. It can point to kidney issues, medication side effects, or chronic venous problems that benefit from targeted treatment.