Elevating your legs above heart level for 15 minutes is the fastest way to start draining fluid from swollen legs. But lasting relief usually requires a combination of strategies: compression, movement, dietary changes, and addressing whatever is causing the swelling in the first place. Here’s what works and how to do each one properly.
Elevate Your Legs the Right Way
Elevation uses gravity to move pooled fluid back toward your heart. The key detail most people get wrong is height: your legs 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, or rest your legs up against a wall. Hold this position for about 15 minutes per session, and repeat several times throughout the day if swelling is persistent.
Elevation works best when you do it consistently rather than once in a while. If your legs swell daily, building in two or three elevation sessions, especially after long periods of sitting or standing, can make a noticeable difference within days.
Use Compression Stockings
Compression stockings apply graduated pressure to your legs, squeezing tightest at the ankle and loosening as they go up. This prevents fluid from pooling and helps push it back into circulation. They come in different pressure levels measured in mmHg:
- 15 to 20 mmHg (mild): Good for minor, occasional swelling or prevention during travel and long workdays.
- 20 to 30 mmHg (moderate): The most commonly recommended range for noticeable edema and varicose veins.
- 30 to 40 mmHg (firm): Typically used for more severe swelling or chronic vein problems, usually with a healthcare provider’s guidance.
Put them on first thing in the morning before swelling has a chance to build up. If you put them on after your legs are already puffy, they’ll be harder to get on and less effective. Knee-high stockings are sufficient for most people with lower leg swelling.
Move Frequently and Do Ankle Pumps
Your calf muscles act as a pump for the veins in your legs. Every time they contract, they squeeze blood and fluid upward. Sitting or standing still for hours shuts this pump down, letting fluid accumulate. Harvard Health recommends getting up and walking around at least once an hour during long periods of sitting or standing.
When you can’t get up and walk, ankle pump exercises activate the same calf muscle pump from a seated or lying position. Point your feet 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. These are simple enough to do at a desk, on a plane, or in bed.
Cut Back on Sodium
Sodium makes your body hold onto water, and excess salt is one of the most common contributors to leg swelling. For people actively managing fluid retention, staying under 2,000 mg of sodium per day is a widely used guideline. For context, a single fast-food meal can easily contain 1,500 mg or more.
The biggest sources of hidden sodium aren’t the salt shaker on your table. They’re processed foods, canned soups, deli meats, frozen meals, bread, and condiments. Reading nutrition labels and cooking more meals at home gives you much more control. Even modest reductions in sodium, dropping from 4,000 mg to 2,500 mg daily, can produce visible changes in swelling within a week or two.
Drink More Water, Not Less
It sounds counterintuitive, but drinking more water often helps reduce swelling. When you’re dehydrated, your kidneys respond by retaining more sodium and water, which worsens fluid buildup in your tissues. Staying well hydrated signals your body that it doesn’t need to hold onto extra fluid. Aim for roughly 1.5 to 2 liters of water a day, and increase that in hot weather or if you’re physically active. Eating water-rich fruits and vegetables counts toward your intake too.
Try an Epsom Salt Soak
Soaking swollen feet and lower legs in warm water with Epsom salt is a traditional remedy with some clinical support behind it. One study on pregnant women with foot swelling found that soaking in lukewarm Epsom salt water (about 30 grams per liter) for 20 minutes a day reduced swelling by nearly 74% over three days. That outperformed foot exercises alone in the same study. The warm water likely helps by improving circulation, while the magnesium sulfate may reduce inflammation. It’s a low-risk option worth trying alongside other strategies.
Check Whether Your Medications Are Contributing
Several common medications cause leg swelling as a side effect. If your swelling started or worsened after beginning a new prescription, the medication could be the culprit. The most frequent offenders include:
- Blood pressure medications (particularly calcium channel blockers like amlodipine), which widen blood vessels and increase pressure in the small capillaries of your legs.
- Pain relievers like ibuprofen and naproxen (NSAIDs), which cause your kidneys to retain sodium and water.
- Nerve pain medications like gabapentin and pregabalin, which dilate small arteries in a way similar to blood pressure drugs.
- Insulin, which can increase fluid leakage from blood vessels, especially during rapid blood sugar corrections.
- Certain antipsychotic medications, which cause blood vessel dilation.
Don’t stop any medication on your own. But if you suspect a connection, bring it up with your prescriber. Alternatives with less swelling risk often exist.
When Swelling Signals Something Serious
Most leg swelling is caused by fluid retention from gravity, salt, inactivity, or medications. But certain patterns require prompt medical attention.
Sudden swelling in one leg, especially with pain, redness, or warmth, is the classic warning sign of a blood clot (DVT). This is a medical emergency because the clot can break loose and travel to your lungs. Swelling in both legs that develops gradually and doesn’t go away with elevation may point to chronic vein disease, heart failure, or kidney or liver problems.
A quick test you can do at home: press your thumb firmly into the swollen area for about five seconds, then release. If an indent remains and takes more than a few seconds to fill back in, that’s called pitting edema, and it suggests significant fluid accumulation. The deeper the indent and the longer it takes to bounce back, the more advanced the swelling. Mild pitting that rebounds immediately is common and usually manageable at home. Deep pits (5 mm or more) that take 15 seconds or longer to refill warrant medical evaluation to identify the underlying cause.
Putting It All Together
The most effective approach combines multiple strategies at once. Elevate your legs several times a day, wear compression stockings during waking hours, take movement breaks every hour, reduce your sodium intake, stay hydrated, and consider Epsom salt soaks in the evening. Most people with mild to moderate swelling from everyday causes like prolonged sitting, heat, or dietary salt will see meaningful improvement within a few days of consistent effort. If swelling doesn’t respond to these measures after a week or two, or if it’s getting worse, that’s a sign something deeper is going on and worth investigating.