Swollen feet usually respond well to a combination of elevation, movement, and simple lifestyle changes. The fastest relief comes from raising your feet above heart level, but lasting improvement depends on addressing what’s driving the swelling in the first place, whether that’s prolonged sitting, excess sodium, medication side effects, or an underlying health condition.
Elevate Your Feet Above Your Heart
The single most effective thing you can do right now is lie down and prop your feet up so they’re higher than your chest. This lets gravity pull trapped fluid back toward your core instead of letting it pool in your lower legs. Stack pillows under your calves or rest your legs against a wall. The key detail most people miss is height: your feet need to be genuinely above heart level, not just slightly raised on an ottoman. Aim to hold this position several times throughout the day, especially after long stretches of standing or sitting.
Keep Your Ankles Moving
Your calf muscles act as a pump for the veins in your lower legs. Every time those muscles contract, they squeeze blood upward toward your heart. When you sit or stand still for hours, that pump stalls and fluid accumulates.
Ankle pumps are the simplest fix. While sitting or lying down, point your toes toward your knees as far as you can, then point them away from you. Repeat this back-and-forth motion for two to three minutes, and do it two to three times per hour when you’re sedentary. You can do these at a desk, on an airplane, or in bed. Walking is even better if you’re able to, since it engages the full calf muscle with every step. Even a five-minute walk every hour makes a noticeable difference.
Try Compression Socks
Compression socks apply graduated pressure to your lower legs, tightest at the ankle and looser as they go up, which helps push fluid back into circulation. Over-the-counter options typically provide 15 to 20 mmHg of pressure, which is enough for mild, everyday swelling from sitting, standing, or travel.
If that level doesn’t help, prescription-strength socks range from 20 to 30 mmHg up to 30 to 40 mmHg. These stronger options generally require a doctor’s guidance because they aren’t safe for everyone, particularly people with certain circulation problems. Put compression socks on first thing in the morning before swelling has a chance to build, and remove them before bed.
Cut Back on Sodium
Sodium acts like a sponge for water in your body. The more sodium circulating in your blood, the more fluid your body holds onto to keep concentrations balanced. For people dealing with fluid retention, most clinical guidelines recommend keeping sodium intake under 2,000 mg per day. That’s less than a single teaspoon of table salt, and far below what most people actually consume.
The biggest culprits aren’t the salt shaker on your table. Packaged soups, deli meats, frozen meals, bread, soy sauce, and restaurant food account for the vast majority of sodium in a typical diet. Reading nutrition labels and cooking more meals at home are the two changes that make the biggest dent. Even a moderate reduction, from 3,500 mg down to 2,000 mg daily, can produce a visible difference in swelling within a few days.
Stay Hydrated, Don’t Restrict Water
It sounds counterintuitive, but drinking enough water actually reduces fluid retention. When you’re dehydrated, the ratio of salt to fluid in your blood rises. Your brain responds by releasing a hormone that tells your kidneys to hold onto water, which makes swelling worse. Staying well hydrated keeps that salt-to-water ratio in a normal range and allows your kidneys to flush excess fluid instead of hoarding it.
That said, chugging large amounts at once isn’t helpful either. Your body has a protective mechanism that causes it to rapidly excrete a sudden flood of water, so steady sipping throughout the day is more effective than downing a liter at a time.
Soak in Epsom Salt
An Epsom salt foot soak is a popular home remedy, and there’s some clinical evidence behind it. In a study of pregnant women with foot swelling, soaking feet in lukewarm Epsom salt water for 20 minutes daily for three days reduced swelling by about 74%, compared to 55% reduction from exercise alone. The warm water helps relax tissues and improve local circulation, while the magnesium sulfate may contribute additional anti-inflammatory effects.
To try it, dissolve roughly 30 grams (about two tablespoons) of Epsom salt per liter of lukewarm water and soak for 20 minutes. The water should be warm but not hot, as excessive heat can actually worsen swelling by dilating blood vessels further.
Choose the Right Footwear
Tight shoes don’t just feel uncomfortable on swollen feet. They can restrict circulation and make the problem worse. If your feet swell regularly, look for shoes with these features:
- Adjustable closures like Velcro straps or elastic laces, so you can loosen the fit as swelling changes throughout the day
- Extra depth and wide widths to give your foot room to expand without being squeezed
- Stretchable uppers made of materials that flex with your foot rather than resisting it
- A wide toe box that prevents pinching and lets toes move freely
- Supportive insoles that distribute weight evenly and reduce pressure points
Leave about a thumb’s width of space between your longest toe and the front of the shoe. On days when swelling is significant, sandals with adjustable Velcro straps and cushioned footbeds can be more practical than closed shoes.
Check Your Medications
Several common medications cause foot and ankle swelling as a side effect. Calcium channel blockers, a widely prescribed class of blood pressure medication, cause some degree of swelling in nearly half the people who take them. Other medications known to trigger fluid retention include beta blockers, hormone therapies (estrogen, progesterone, testosterone, corticosteroids), nerve pain medications like gabapentin and pregabalin, NSAIDs like ibuprofen, certain diabetes drugs, and some antidepressants.
If your swelling started or worsened after beginning a new medication, that’s worth mentioning to your prescriber. Alternatives or dosage adjustments can sometimes resolve the problem without sacrificing treatment.
Warning Signs That Need Urgent Attention
Most foot swelling is harmless, caused by gravity, heat, salt, or long days on your feet. But certain patterns signal something more serious. Swelling in only one leg, especially when accompanied by pain or cramping in the calf, skin that turns red or purple, or a feeling of warmth in the affected leg, can indicate a deep vein thrombosis (a blood clot in a deep vein). Importantly, blood clots sometimes cause no symptoms at all.
If you develop sudden shortness of breath, chest pain that worsens with deep breaths or coughing, dizziness, a rapid pulse, or you cough up blood, those are signs a clot may have traveled to the lungs. That’s a medical emergency. Swelling that develops rapidly, affects only one side, or comes with pain, discoloration, or breathing changes is fundamentally different from the symmetrical puffiness that responds to elevation and salt reduction.