Swollen ankles respond well to a combination of simple strategies you can start at home: elevation, movement, compression, cold therapy, and dietary changes. Most cases of mild to moderate ankle swelling improve noticeably within a few days when you layer these approaches together. Here’s how each one works and how to do it correctly.
Elevate Your Legs Above Your Heart
Elevation is the fastest way to get visible relief. Gravity pulls fluid downward throughout the day, and reversing that pull lets it drain back toward your core. The key detail most people miss: your ankles need to be above the level of your heart, not just propped on an ottoman. Lying on your back with your legs on a stack of pillows or resting them against a wall works well.
Aim for about 15 minutes per session, three to four times a day. If you work at a desk or stand for long stretches, even a single midday session can make a noticeable difference by evening. Consistency matters more than marathon sessions.
Use Ankle Pump Exercises
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 upward against gravity. When you sit or stand still for hours, that pump goes idle and fluid pools around your ankles.
The movement is simple: point your toes downward, then pull them back toward your shin. A 2023 systematic review found that performing one pump every three to four seconds was the most effective rhythm for improving blood flow in the lower legs. You don’t need to set aside a workout for this. Do sets of 20 to 30 pumps while sitting at your desk, watching TV, or on a long flight. Ankle circles work too, rotating each foot in both directions.
Apply Cold Packs for 20 Minutes
Cold narrows blood vessels and slows the movement of fluid into swollen tissue, which is especially helpful after an injury or a long day on your feet. A randomized controlled trial on soft tissue ankle injuries found that 20 minutes of cold application was the sweet spot for reducing pain and improving joint mobility.
Going beyond that backfires. Participants who used cold for 30 minutes reported significantly more tingling, numbness, burning, and redness. Always wrap the ice pack or frozen gel pack in a thin towel rather than placing it directly on your skin. You can repeat this every two to three hours during the first day or two of noticeable swelling.
Try Compression Socks
Compression socks apply graduated pressure, tightest at the ankle and looser as they go up, which helps push fluid back into circulation. They come in different pressure levels measured in mmHg, and choosing the right one matters.
- 15 to 20 mmHg: Available over the counter. Good for mild daily swelling, travel, or long periods of sitting and standing.
- 20 to 30 mmHg: Better for moderate swelling, varicose veins, or post-surgical recovery. Often recommended by a doctor.
- 30 mmHg and above: Medical-grade, used for chronic conditions like lymphedema or severe venous insufficiency. These require a prescription.
For most people dealing with everyday ankle puffiness, the 15 to 20 mmHg range is a good starting point. Put them on in the morning before swelling builds up during the day. One important caution: if you have peripheral artery disease, diabetes with significant nerve damage, or active skin infections on your legs, compression can actually restrict blood flow further. Check with your doctor before using them in those cases.
Cut Back on Sodium
Sodium causes your body to hold onto water. When sodium levels in your blood rise even slightly, your brain detects the shift and triggers thirst so you’ll drink more fluid to dilute it. The result is a higher overall fluid volume, and the excess tends to settle in your feet and ankles.
For people prone to fluid retention, keeping sodium intake under 2,000 mg per day is a common clinical target. That’s less than a teaspoon of table salt. The biggest sources aren’t the salt shaker on your table. They’re processed and restaurant foods: deli meats, canned soups, frozen meals, soy sauce, bread, and cheese. Reading nutrition labels for a week or two can be eye-opening. Even swapping one or two high-sodium staples for lower-sodium versions often produces a noticeable drop in swelling within days.
Stay Hydrated
It sounds counterintuitive, but drinking enough water actually reduces fluid retention. When you’re even mildly dehydrated, the concentration of sodium and other solutes in your blood rises. Your body responds by holding onto whatever water it has rather than letting it pass through normally. Staying consistently hydrated keeps that sodium concentration in a range where your kidneys can flush excess fluid efficiently instead of stockpiling it.
There’s no magic number that works for everyone, but most adults do well with six to eight glasses a day, adjusted upward in hot weather or if you’re physically active.
Check Your Magnesium Levels
Magnesium deficiency can contribute to water retention and swelling. Cleveland Clinic podiatrist Georgeanne Botek notes that taking 200 to 400 mg of magnesium daily may help reduce swelling in people who are low in this mineral. You can also get magnesium from foods like spinach, almonds, avocado, dark chocolate, and black beans.
Some people soak their feet in Epsom salt (magnesium sulfate) baths. The scientific evidence for absorbing meaningful amounts of magnesium through the skin is thin, but many people find the warm soak soothing and report that it reduces puffiness temporarily. At worst, it’s a relaxing 15 minutes with your feet elevated in the tub.
Medications That Cause Ankle Swelling
If your ankle swelling started or worsened around the time you began a new medication, that may not be a coincidence. Calcium channel blockers, a common class of blood pressure medications, are well known for causing ankle edema. Unlike typical fluid retention, these drugs cause fluid to shift from blood vessels into the surrounding tissue, which is why the swelling doesn’t always respond to diuretics.
NSAIDs (ibuprofen, naproxen) are another frequent culprit, as are certain diabetes medications and steroids. If you suspect a medication is involved, bring it up with your prescriber. There are often alternatives in the same drug class that cause less swelling, or your dose may be adjustable.
Swelling That Needs Medical Attention
Most ankle swelling is harmless and responds to the strategies above. But certain patterns point to something more serious. Swelling in only one leg, especially when it’s accompanied by pain, warmth, or redness in the calf, can signal a deep vein thrombosis (blood clot). That needs prompt medical evaluation.
Swelling in both legs that develops gradually and doesn’t improve with elevation may reflect a systemic problem: heart failure, kidney disease, or liver disease. Associated symptoms to watch for include shortness of breath when lying down, waking up at night gasping for air, sudden weight gain over a few days, or decreased urine output. Skin changes around the ankles, like darkening or thickening, often indicate chronic venous insufficiency that benefits from medical management beyond home remedies.
If your swelling appeared suddenly, affects only one side, comes with chest pain or difficulty breathing, or doesn’t respond to a week of consistent home treatment, those are all reasons to get it evaluated rather than continuing to manage it on your own.