Edema, the buildup of excess fluid in your body’s tissues, is treated by addressing what’s causing it and using a combination of lifestyle changes to move that fluid out. Most cases involve swelling in the legs, ankles, or feet, and mild edema often improves significantly with simple strategies you can start at home. More persistent or severe swelling may require medication or specialized therapy.
Elevate Your Legs Above Your Heart
The single most effective thing you can do right now for swollen legs or ankles is elevate them. Position your legs so they rest just above the level of your heart while you’re sitting or lying down. This uses gravity to help fluid drain back toward your core rather than pooling in your lower extremities. Propping your feet on a couple of pillows while lying in bed, or reclining with your legs up on a couch armrest, both work well.
There’s no strict rule on how long each session should last, but consistency matters more than marathon sessions. Elevating for 20 to 30 minutes several times a day is a reasonable starting point, and many people find the swelling visibly decreases within the first few days of making this a habit.
Move Your Body to Push Fluid Out
Sitting or standing in one position for hours lets fluid settle into your lower legs. Movement, especially in your calves and ankles, acts like a pump that pushes fluid back up through your veins. Walking is the simplest option. Even short walks around your home or office every hour can make a noticeable difference.
If you’re stuck in bed or a chair, ankle pumps are a go-to exercise. Point your feet toward your knees as far as you can, then point them away from you, alternating back and forth for two to three minutes. Repeating this two to three times per hour keeps blood circulating and helps prevent fluid from accumulating. You may feel some soreness, but stop if pain increases.
Cut Back on Sodium
Salt makes your body hold onto water, which directly worsens swelling. For people managing edema, the recommended daily sodium intake is between 1,375 and 1,800 milligrams. That’s significantly lower than what most people eat. The average American consumes over 3,400 milligrams per day, so cutting your intake in half is a realistic first goal.
The biggest sources of sodium aren’t the salt shaker on your table. They’re processed and packaged foods: canned soups, deli meats, frozen meals, condiments, and restaurant dishes. Reading nutrition labels and cooking more meals at home gives you far more control. Swapping salty snacks for fresh fruits and vegetables also helps, since potassium-rich foods like bananas and leafy greens support your body’s fluid balance.
Compression Garments
Compression stockings or sleeves apply steady pressure to your swollen limbs, preventing fluid from accumulating in the tissue. They’re especially helpful if you have chronic swelling from venous insufficiency, where the valves in your leg veins don’t push blood back up as efficiently as they should. Compression works best when you put the garments on first thing in the morning before swelling builds up throughout the day.
Compression stockings come in different pressure levels, measured in millimeters of mercury (mmHg). Mild compression (15 to 20 mmHg) is available over the counter and works for minor swelling. Higher levels (20 to 30 mmHg or above) typically require a prescription and fitting to make sure they’re effective without being too tight.
How Severity Is Measured
Your doctor may press a finger into the swollen area to check for “pitting,” where the skin holds an indentation after pressure is released. This is graded on a scale of 1 to 4:
- Grade 1: A shallow 2 mm pit that rebounds immediately
- Grade 2: A 3 to 4 mm pit that rebounds in under 15 seconds
- Grade 3: A 5 to 6 mm pit that takes 15 to 60 seconds to rebound
- Grade 4: An 8 mm pit that takes two to three minutes to rebound
Grade 1 or 2 edema often responds well to lifestyle changes alone. Grade 3 or 4 typically signals a more significant underlying issue and usually requires medical treatment.
Diuretics for Persistent Swelling
When lifestyle measures aren’t enough, doctors often prescribe diuretics, commonly called “water pills.” These medications work by making your kidneys excrete more sodium and water into your urine, which reduces the total volume of fluid in your body.
The most commonly prescribed type for moderate to severe edema is loop diuretics, which block sodium from being reabsorbed in a specific part of the kidney, producing a strong and relatively fast effect. You’ll notice increased urination within a couple of hours of taking them. Thiazide diuretics are milder, acting on a different part of the kidney, and are often used for less severe cases or in combination with other medications. A third category, potassium-sparing diuretics, works more gently and helps prevent the potassium loss that other diuretics can cause. Your doctor may combine types depending on how your body responds.
One important thing to know: diuretics treat the symptom, not the cause. They reduce fluid volume, but if the underlying reason for your edema isn’t addressed, the swelling returns once you stop taking them.
Check Whether Your Medications Are the Cause
Some medications cause edema as a side effect. One common class is calcium channel blockers, which are prescribed for high blood pressure. The type known as dihydropyridines works by relaxing blood vessels, but this relaxation can allow fluid to leak into surrounding tissues, causing swelling in the arms or legs. Other medications that can trigger fluid retention include certain diabetes drugs, steroids, anti-inflammatory painkillers, and some hormonal treatments.
If your swelling started or worsened after beginning a new medication, that connection is worth exploring with your prescriber. Switching to a different drug in the same class or adjusting your dose can sometimes resolve the problem entirely.
Lymphatic Drainage Massage
When edema is caused by a sluggish or damaged lymphatic system, a specialized type of massage called manual lymphatic drainage can help. This is different from a regular massage. A trained therapist uses very light pressure and specific stroking techniques to first stimulate areas where lymph nodes cluster (the armpits, neck, and groin), then gently guides excess fluid from the swollen tissue toward those nodes, where the body can reabsorb it.
This therapy is most commonly used for lymphedema after breast cancer surgery, but it also helps with swelling related to chronic venous insufficiency, fibromyalgia, rheumatoid arthritis, and injury. Signs that your lymphatic system may not be draining well include puffy hands or ankles, fatigue, chronic sinus congestion, and skin changes like persistent dryness or rashes.
Treating the Underlying Condition
Edema is almost always a symptom of something else. In many cases, it’s relatively benign: prolonged sitting, pregnancy, eating too much salt, or standing all day at work. But persistent or worsening edema can point to heart failure, kidney disease, liver disease, or deep vein thrombosis. The treatment that actually resolves the swelling long-term depends on identifying and managing the root cause.
Heart failure, for example, causes fluid to back up in the legs and lungs because the heart isn’t pumping strongly enough. Treating the heart condition with appropriate medications directly reduces the edema. Kidney disease impairs your body’s ability to filter and excrete fluid, so managing kidney function is what controls the swelling. Venous insufficiency, where weakened valves in the leg veins let blood pool downward, is managed with compression, exercise, and sometimes procedures to repair or close damaged veins.
If your edema is in only one leg, appeared suddenly, or comes with pain, redness, or warmth, that pattern suggests a blood clot or infection rather than a systemic fluid problem, and it needs prompt evaluation.
Signs That Swelling Is an Emergency
Most edema develops gradually and isn’t dangerous on its own. But when fluid builds up in the lungs (pulmonary edema), it becomes life-threatening. This can happen suddenly and requires emergency care. Warning signs include difficulty breathing, feeling like you’re suffocating, wheezing or gasping for air, coughing up blood or frothy mucus, and chest tightness or pain. Other red flags are a rapid heartbeat, bluish or grayish skin, excessive sweating, and sudden dizziness or weakness.
If you or someone near you develops these symptoms, call 911. Acute pulmonary edema can deteriorate quickly, and treatment in a hospital setting is necessary to remove fluid from the lungs and stabilize breathing.