Elevating your feet above heart level is the single fastest way to reduce swelling, and most people notice a visible difference within 15 to 20 minutes. But elevation works best when you combine it with a few other strategies. Here’s what actually moves fluid out of your feet quickly, what to do over the following hours and days, and when swelling signals something more serious.
Elevate Your Feet Above Your Heart
Gravity is the main reason fluid pools in your feet, so reversing it is the most immediate fix. Lie down and position your legs so your feet rest above the level of your heart. A stack of pillows on the couch, a wedge cushion, or the arm of a sofa all work. The key is getting your feet genuinely higher than your chest, not just propped up a few inches. If you can’t get that high, resting your feet on a coffee table or ottoman still helps slow fluid accumulation.
Stay in this position for at least 15 to 20 minutes per session, and repeat several times throughout the day. Many people find swelling is worst in the evening after hours of standing or sitting, so elevating before bed can make a noticeable difference by morning.
Do Ankle Pumps to Push Fluid Out
Your calf muscles act as a pump for the veins in your lower legs. Every time you flex and point your foot, those muscles squeeze blood and fluid back up toward your heart. To do ankle pumps, point your toes toward your knees as far as you can, then point them away from you as far as you can. Alternate back and forth for two to three minutes, and repeat two to three times per hour.
This is especially useful if you’re stuck sitting at a desk, on a long flight, or recovering from a procedure. Even small movements keep fluid from settling. Walking is another excellent option when you’re able, since every step activates that same calf muscle pump.
Use Compression Socks
Compression socks apply graduated pressure to your lower legs, which helps prevent fluid from collecting in your feet and encourages it to move back into circulation. For mild swelling, socks in the 15 to 20 mmHg range are a good starting point. Moderate swelling responds better to 20 to 30 mmHg. Anything above 30 mmHg is typically used under a doctor’s guidance.
Put compression socks on first thing in the morning, before swelling has a chance to build. If your feet are already swollen, elevate them for 15 to 20 minutes first, then slide the socks on. Wearing them throughout the day prevents the cycle of fluid accumulation that makes evenings worse.
Cold Water or Ice Packs
Cold causes blood vessels to constrict, which slows the flow of fluid into swollen tissue. Soaking your feet in cool water for 10 to 15 minutes or applying an ice pack wrapped in a towel can provide quick, temporary relief. This works best for swelling related to heat, prolonged standing, or minor injury. Alternate 15 minutes on and 15 minutes off to avoid skin irritation.
Cut Back on Sodium
Sodium and water are tightly linked in your body. When sodium levels rise, your body holds onto more water to dilute it, and that extra fluid often ends up in your feet and ankles. The World Health Organization recommends less than 2,000 mg of sodium per day, which is just under a teaspoon of table salt. Most people consume well above that, largely from processed foods, restaurant meals, canned soups, deli meats, and salty snacks.
Reducing sodium won’t deflate your feet in an hour, but within a day or two of cutting back, your kidneys start excreting the excess water they’ve been holding. This is one of the most effective longer-term strategies for people who deal with recurring foot swelling.
Stay Hydrated
It sounds counterintuitive, but drinking more water can reduce swelling. When you’re dehydrated, your body releases a hormone that tells your kidneys to hold onto water, which increases fluid retention. Staying well hydrated signals your body that it’s safe to release excess fluid through urine. Your body constantly adjusts the balance between water and sodium in your blood. Giving it enough water to work with makes that process more efficient.
Eat Potassium-Rich Foods
Potassium works opposite to sodium in your body. While sodium causes water retention, potassium helps your kidneys flush out excess sodium and the water that comes with it. Good sources include bananas, avocados, potatoes, white beans, salmon, spinach, and mushrooms. You don’t need supplements for this. A few servings of potassium-rich foods each day supports the fluid balance that keeps swelling in check.
What About Epsom Salt Soaks?
Epsom salt baths are a popular home remedy for swelling, but the evidence behind them is thin. Researchers at the Hospital for Special Surgery note there aren’t any well-controlled studies confirming that magnesium from Epsom salts absorbs through the skin in meaningful amounts, and there’s no research supporting an anti-inflammatory effect from soaking. That said, the warm water itself can feel soothing and promote relaxation. If you enjoy it, there’s no harm in it. Just don’t rely on it as your primary strategy.
How Quickly Swelling Goes Down
For everyday swelling caused by gravity, heat, or too much salt, you can see improvement within 20 to 30 minutes of elevating your feet, especially when combined with ankle pumps. The morning-better, evening-worse pattern is common and normal. Consistent use of elevation, compression, reduced sodium, and movement typically brings noticeable improvement over several days.
Post-surgical swelling follows a different timeline. It peaks around 48 to 72 hours after a procedure, then gradually improves over two to six weeks. By six to twelve weeks, most people are near their baseline, though mild fullness can linger. Swelling that doesn’t follow any predictable pattern, or that gets progressively worse over days, is worth investigating.
Check Your Medications
Certain medications cause foot and ankle swelling as a side effect. Blood pressure drugs in the calcium channel blocker family are among the most common culprits, with swelling reported in up to 15% of people taking certain types. If your swelling started or worsened after beginning a new medication, that’s worth bringing up with whoever prescribed it. Dose adjustments or switching to a different medication can sometimes resolve the problem entirely.
When Swelling Needs Urgent Attention
Most foot swelling is harmless, but a few patterns warrant prompt medical evaluation. Swelling in only one leg, especially when paired with calf pain, warmth, or redness along the inner thigh or calf, raises concern for a blood clot. Notably, clinical signs alone can’t confirm or rule out a clot. Tenderness shows up in about 75% of people with confirmed clots, but also in 50% of people who don’t have one. Diagnostic imaging is the only reliable way to tell the difference.
Sudden swelling in both feet alongside shortness of breath, chest tightness, or a rapid weight gain of several pounds over a few days can indicate a heart or kidney issue that needs immediate attention. Swelling that leaves a deep, lasting dent when you press on it (called pitting edema) and doesn’t improve with elevation also warrants a medical workup.