Swollen feet usually improve with a combination of elevation, movement, compression, and dietary changes. The right approach depends on whether your swelling is temporary (from sitting too long, hot weather, or pregnancy) or tied to something chronic like poor vein function or a medication you’re taking. Most mild cases respond well to home strategies you can start today.
Why Feet Swell in the First Place
Fluid naturally pools in your feet and ankles because gravity pulls it downward all day. Your body maintains a careful balance of pressure inside blood vessels and in the surrounding tissue. When that balance tips, fluid leaks out of capillaries and collects in the spaces between cells. This can happen because of increased pressure in your veins (from standing, sitting, or heart problems), weakened vein valves that let blood flow backward, sluggish lymphatic drainage, or inflammation that makes blood vessel walls more permeable.
Common everyday triggers include prolonged sitting or standing, high salt intake, hot weather, and hormonal shifts during menstruation or pregnancy. A surprisingly long list of medications can also cause foot swelling: certain blood pressure drugs, anti-inflammatory medications (both prescription and over-the-counter), nerve pain medications like gabapentin and pregabalin, hormone therapies, and some antipsychotics. If your swelling started or worsened after beginning a new medication, that connection is worth raising with your prescriber.
Elevate Your Legs the Right Way
Elevation is the simplest and most immediately effective tool. 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 your back and stack pillows under your calves and feet so they’re higher than your chest. Aim for about 15 minutes per session, three to four times a day. Even doing this once in the evening after a long day on your feet can make a noticeable difference.
If you’re pregnant or recovering from surgery, slightly elevating your legs with a pillow while you sleep helps prevent fluid from accumulating overnight. The position doesn’t need to be dramatic. A gentle incline is enough to assist the return of fluid toward your core.
Move Your Ankles and Calves Often
Your calf muscles act as a pump that pushes blood and fluid back up toward your heart. When you sit or stand still for hours, that pump barely works. Simple ankle exercises can activate it without requiring you to get up.
Point your toes toward your knees as far as they’ll go, then point them away from you. Alternate back and forth for two to three minutes, and repeat this cycle two to three times per hour when you’re sitting for extended periods. You can do this at a desk, on a plane, or in bed. Walking is even better when it’s an option. Even a five-minute walk every hour keeps your calf muscles contracting and fluid circulating.
Cut Back on Sodium
Sodium causes your body to hold onto water, and most of it comes from processed and restaurant food rather than the salt shaker. The American Heart Association recommends staying under 1,500 mg of sodium per day for the general population. For context, a single fast-food sandwich can contain 1,200 mg or more.
You don’t need to obsess over exact milligrams, but a few practical shifts make a big difference: cook more meals at home, read labels on canned soups and deli meats (two of the biggest sodium sources), and swap salty snacks for fruit or unsalted nuts. Most people eating a typical Western diet consume 3,400 mg of sodium daily, so even a moderate reduction can reduce fluid retention noticeably within a few days.
Drink More Water, Not Less
It sounds counterintuitive, but staying well hydrated actually reduces fluid retention. When your body senses dehydration, it holds onto more water as a protective response. Drinking enough water throughout the day signals your kidneys to release excess fluid rather than store it. There’s no magic number, but if your urine is pale yellow, you’re generally well hydrated.
Use Compression Stockings
Compression stockings apply graduated pressure to your legs, squeezing tightest at the ankle and gradually loosening toward the knee or thigh. This steady pressure helps push fluid upward and prevents it from pooling.
For mild, occasional swelling, stockings in the 15 to 20 mmHg range provide gentle support and are available without a prescription. These work well for long flights, desk jobs, or early signs of puffiness. If your swelling is more persistent or related to vein problems, 20 to 30 mmHg stockings offer moderate compression and are the most commonly recommended level for daily wear. Firmer compression (30 to 40 mmHg) is typically reserved for more advanced conditions like chronic venous insufficiency or lymphedema, and these are best fitted with guidance from a clinician to make sure they’re appropriate for your circulation.
Put compression stockings on first thing in the morning before swelling has a chance to build up during the day. If you wait until your feet are already swollen, they’ll be harder to get on and less effective.
Pregnancy Swelling
Foot and ankle swelling is extremely common during pregnancy, especially in the third trimester, as your growing uterus puts pressure on the veins that return blood from your legs. Most pregnancy-related swelling is harmless but uncomfortable.
The same strategies apply: elevate your legs when resting, wear supportive compression stockings during the day, move your ankles in circles when seated, and avoid standing for long stretches. One pregnancy-specific tip that may surprise you: standing or walking in a pool can compress leg tissues and provide relief. The water pressure acts like natural compression, and the buoyancy takes weight off your feet at the same time.
One important warning sign during pregnancy: swelling that appears suddenly in only one leg, especially with pain, redness, or warmth, needs immediate medical attention. Sudden swelling in the face or hands alongside a severe headache can signal a dangerous blood pressure condition called preeclampsia.
When Swelling Points to Something Serious
Most foot swelling is benign, but certain patterns warrant prompt evaluation. Swelling in only one foot or leg, particularly if it’s painful, warm, or red, can indicate a blood clot in a deep vein. This is a medical emergency because the clot can travel to the lungs.
Swelling in both feet that develops gradually and doesn’t fully resolve with elevation may signal chronic venous insufficiency, where damaged valves in the leg veins allow blood to pool. Over time, this can lead to skin discoloration, thickening, and even ulcers near the ankles. Treatment ranges from daily compression wear to procedures that seal off faulty veins.
Persistent bilateral swelling can also be a sign of heart, kidney, or liver problems. If your feet stay swollen despite consistent elevation and sodium reduction, or if you notice shortness of breath, rapid weight gain (several pounds in a few days), or swelling that leaves a lasting dent when you press on it, these are signals your body is retaining fluid systemically, not just locally.
Prescription Options for Stubborn Swelling
When lifestyle measures aren’t enough, doctors may prescribe diuretics, sometimes called “water pills.” These medications help your kidneys flush excess sodium and water from your body. The most commonly prescribed types are loop diuretics, which work on a specific part of the kidney to block sodium reabsorption, and thiazide diuretics, which act on a different segment of the kidney with a similar effect. A third category, potassium-sparing diuretics, is sometimes added when the others cause too much potassium loss.
Diuretics treat the symptom, not the cause. They’re most useful when swelling is tied to heart failure, liver disease, or kidney problems, and they’re prescribed alongside treatment for the underlying condition. They’re not intended for the kind of mild, gravity-related swelling that responds to elevation and movement. If a medication you’re taking is causing your swelling, switching to an alternative is often more effective than adding a diuretic on top of it.