Swollen feet usually improve with a combination of elevation, movement, and reducing salt intake. For most people, the swelling is caused by fluid pooling in the lower legs after long periods of sitting or standing, and simple strategies at home can make a noticeable difference within hours. The approach that works best depends on what’s causing the swelling in the first place.
Elevate Your Feet Above Your Heart
The fastest way to reduce swelling is to lie down and prop your feet up so they’re above the level of your heart. This lets gravity pull trapped fluid back toward your core instead of letting it sit in your feet and ankles. Use a stack of pillows, a wedge cushion, or the arm of a couch to get the right height. Keep your legs elevated for about 15 minutes, and repeat three to four times throughout the day.
If you only elevate your feet to hip level (like resting them on an ottoman while sitting), you won’t get nearly the same drainage effect. The key is getting your feet genuinely higher than your chest.
Use Your Calf Muscles as a Pump
Your calf muscles act like a built-in pump for fluid return. Every time they contract, they squeeze the veins in your lower legs and push fluid upward. When you sit or stand for hours without moving, that pump shuts off, and fluid accumulates. A few targeted exercises can restart it.
Start with ankle pumps: pull your toes up toward your shin, then point them toward the floor. Repeat 5 to 10 times. Circle your ankles in both directions to loosen stiffness. For a stronger pump, try heel raises while seated: keep your toes on the floor and lift your heels up, then lower them. Repeat 5 to 10 times. If you’re able to stand, hold onto a counter or chair back and rise up onto the balls of your feet, then slowly lower down. These exercises work well during long flights, desk work, or any time you can’t walk around.
Walking is the simplest version of this. Even a five-minute walk engages the calf pump and can visibly reduce puffiness over the course of an hour.
Cut Back on Sodium
Salt makes your body hold onto water, and that extra fluid tends to settle in your feet. Most people consume well over 3,000 mg of sodium per day. If you’re dealing with persistent swelling, aiming for 1,400 to 1,800 mg daily can make a real difference in how much fluid your body retains. That’s a significant cut for most diets.
The biggest sources of hidden sodium are processed and packaged foods: canned soups, deli meats, frozen meals, bread, and restaurant food. Cooking at home with fresh ingredients gives you far more control. Reading nutrition labels helps too, since many foods that don’t taste salty still pack a surprising amount of sodium per serving.
Try Compression Socks or Stockings
Compression stockings apply gentle, graduated pressure to your lower legs, which prevents fluid from pooling in the first place. They’re most effective when you put them on first thing in the morning, before swelling has a chance to build up.
Compression levels are measured in mmHg, and the right level depends on how severe your swelling is:
- 15 to 20 mmHg works for mild, occasional puffiness and is available over the counter. This is a good starting point if you’ve never worn compression before.
- 20 to 30 mmHg suits moderate swelling and is the most commonly recommended level for daily wear.
- 30 to 40 mmHg is used for more significant swelling, especially in the lower legs where gravity creates a heavier fluid load.
Skip compression stockings if you have an active skin infection, suspected blood clot, or significant arterial disease in your legs. In those cases, external pressure can do more harm than good.
Contrast Baths for Temporary Relief
Alternating between warm and cold water creates a pumping effect in your blood vessels. Warm water opens them up, increasing blood flow. Cold water narrows them, pushing fluid out of the tissue. Cycling between the two mimics a flushing action that can temporarily reduce swelling.
Fill one basin with warm water between 95 and 113°F and another with cold water between 50 and 59°F. Soak your feet in the warm water for a few minutes, then switch to the cold for about one minute. Alternate several times, ending on cold. This won’t address the underlying cause of swelling, but it provides noticeable short-term relief.
What’s Causing the Swelling Matters
Swelling in both feet at the same time usually points to a systemic cause. The most common is chronic venous insufficiency, where the valves in your leg veins weaken and allow blood to pool. Prolonged sitting or standing, excess weight, pregnancy, and certain medications (especially blood pressure drugs, hormone therapies, and some anti-inflammatory medications) are also frequent culprits. Heart failure, kidney disease, and liver disease can all cause bilateral foot swelling as well, though these typically come with other noticeable symptoms like fatigue, shortness of breath, or abdominal bloating.
Swelling in just one foot is a different situation. The most important thing to rule out is a deep vein thrombosis, or blood clot. Beyond that, one-sided swelling is most commonly caused by a muscle strain or injury (about 40% of cases), a cyst behind the knee, lymphatic obstruction, or localized venous problems. If one foot swells suddenly without an obvious injury, that warrants prompt medical evaluation.
Swollen Feet During Pregnancy
Some degree of foot and ankle swelling is normal during pregnancy, especially in the third trimester. The growing uterus puts pressure on veins that return blood from the legs, and hormonal changes cause the body to retain more fluid. Elevation, gentle movement, and staying hydrated all help.
What isn’t normal is sudden swelling of the hands, arms, or face, or rapid weight gain over a few days. These can be signs of preeclampsia, a serious pregnancy complication involving high blood pressure. Other warning signs include persistent headaches, vision changes, nausea, upper abdominal pain, and difficulty breathing. Preeclampsia requires medical treatment, so sudden or unusual swelling patterns during pregnancy should be evaluated quickly.
When Swelling Signals an Emergency
Seek emergency care if you have sudden, unexplained swelling in just one leg, or if swelling occurs alongside chest pain, trouble breathing, coughing up blood, fever, or skin that’s red and warm to the touch. These combinations can indicate a blood clot, infection, or heart-related emergency. Swelling that comes on gradually and affects both feet is less likely to be urgent, but persistent swelling that doesn’t respond to elevation and lifestyle changes over a couple of weeks deserves a medical workup to check for underlying organ or vascular problems.