Swollen ankles and feet usually improve with a few straightforward changes you can start today. Elevating your legs, cutting back on salt, staying active, and using compression stockings handle the majority of cases caused by everyday fluid buildup. The key is consistency: doing one thing once won’t make a lasting difference, but combining several strategies over days will.
That said, swelling that appears suddenly in one leg, comes with pain or warmth, or doesn’t respond to home measures can signal something more serious. Understanding both the remedies and the warning signs puts you in a much better position.
Elevate Your Legs Above Your Heart
Gravity is both the cause and the cure. Fluid pools in your feet and ankles when you sit or stand for hours because your circulatory system has to push blood uphill to get it back to your heart. Reversing that equation is the fastest way to see results.
Lie down and prop your legs on pillows so your feet sit above the level of your heart. Keep them there for about 15 minutes, and repeat three to four times throughout the day. A recliner or a stack of couch cushions works fine. The goal isn’t dramatic elevation; a few inches above heart level is enough to let gravity help drain fluid back toward your core. You’ll often notice your ankles look visibly slimmer after just one session, though the effect is temporary unless you also address the underlying habit or cause.
Move Your Calf Muscles Regularly
Your calf muscles act as a pump for the veins in your lower legs. Every time they contract, they squeeze blood upward through one-way valves. When you sit still for hours, that pump shuts off and fluid accumulates.
Ankle pumps are the simplest exercise: point your toes down, then pull them up toward your shin, repeating at a pace of roughly one full pump every three to four seconds. A systematic review of lower-limb blood flow studies found that this pace is the most effective frequency for improving circulation in the legs. You can do this sitting at a desk, on a plane, or in bed. Walking is even better because it engages the full calf with each step. If your job keeps you seated, set a reminder to stand and walk for a few minutes every hour, or at minimum do 20 to 30 ankle pumps in your chair.
Reduce Your Sodium Intake
Salt makes your body hold onto water. The average American consumes about 3,700 mg of sodium per day, well above the 2,300 mg general guideline from federal dietary recommendations. The American Heart Association suggests an even lower target of 1,500 mg per day, particularly for people with high blood pressure, diabetes, kidney disease, or heart failure.
You don’t need to obsess over milligrams. The biggest gains come from cutting the obvious sources: restaurant meals, processed and packaged foods, canned soups, deli meats, and salty snacks. Reading nutrition labels and choosing lower-sodium versions of the products you already buy can cut your intake dramatically within a week. Most people notice less puffiness in their ankles within a few days of reducing salt, especially if fluid retention has been a recurring problem.
Try Compression Stockings
Compression stockings apply gentle, graduated pressure to your lower legs, preventing fluid from settling into your ankles and feet. They’re tightest at the ankle and gradually loosen toward the knee, which helps push blood upward.
For everyday swelling related to sitting or standing, over-the-counter stockings in the 15 to 20 mmHg range are effective. Research confirms that even lighter pressure (10 to 15 mmHg) can reduce or completely prevent swelling in people who sit or stand for long stretches at work. Higher-pressure stockings (20 to 30 mmHg) are available but aren’t always necessary and can feel uncomfortably tight if you’re not used to them. Put compression stockings on first thing in the morning before swelling has a chance to build up. If you put them on after your ankles are already puffy, they’re harder to pull on and less effective.
Soak in Epsom Salt Water
Epsom salt soaks are a popular home remedy, and there’s some clinical support behind them. A study on pregnant women with foot swelling found that soaking feet in lukewarm water with Epsom salt for 20 minutes once a day over three days reduced swelling by about 74%. That outperformed foot exercises alone in the same study. The researchers used roughly 30 grams (about two tablespoons) of Epsom salt per liter of lukewarm water.
The warm water itself helps by promoting circulation, and the magnesium sulfate may draw fluid through the skin. This approach works best for mild, everyday swelling rather than swelling caused by a medical condition. It’s a reasonable addition to your routine, particularly if elevation and movement alone aren’t doing enough.
Check Your Medications
Several common medications cause ankle swelling as a side effect. The most frequent culprits are a class of blood pressure drugs called calcium channel blockers, particularly the dihydropyridine type. These drugs widen blood vessels, which can cause fluid to leak into surrounding tissue.
Other medications linked to swelling include common pain relievers like ibuprofen and naproxen, certain diabetes medications, beta blockers, and other blood pressure drugs like hydralazine and minoxidil. If your swelling started or worsened after beginning a new medication, that connection is worth raising with whoever prescribed it. Adjusting the dose or switching to a different drug often resolves the problem.
When Swelling Signals Something Serious
Swelling in both legs that comes and goes with activity and improves overnight is usually benign. Swelling in just one leg is a different story and deserves closer attention. The most concerning possibility is a deep vein thrombosis, a blood clot in a deep leg vein. The hallmark signs are swelling in one leg accompanied by pain or cramping (often starting in the calf), skin that feels warm to the touch, and a color change toward red or purple.
If a clot breaks loose and travels to the lungs, it becomes a pulmonary embolism. Warning signs include sudden shortness of breath, chest pain that worsens when you breathe deeply or cough, dizziness or fainting, a rapid pulse, or coughing up blood. That combination is a medical emergency.
Other causes of one-sided swelling include infections, injuries, and blockages from surgery or radiation. Chronic swelling in both legs, meanwhile, can point to venous insufficiency (where the valves in your leg veins weaken over time), heart failure, kidney problems, or liver disease. Swelling that doesn’t improve after a week of consistent elevation, compression, and sodium reduction, or that leaves a visible dent when you press your finger into the skin, is worth getting evaluated.
Putting It All Together
The most effective approach combines several of these strategies at once rather than relying on any single fix. A practical daily routine might look like this:
- Morning: Put on compression stockings before getting out of bed or shortly after waking.
- During the day: Do ankle pumps every hour if seated, walk when possible, and keep sodium low at meals.
- Evening: Soak your feet in Epsom salt water for 20 minutes, then elevate your legs for 15 minutes before bed.
Most people with mild to moderate swelling see noticeable improvement within three to five days of following this combination consistently. If the swelling is tied to a temporary cause like a long flight, hot weather, or a day spent on your feet, it typically resolves even faster. Persistent or worsening swelling that doesn’t respond to these measures usually has an underlying medical cause that needs its own treatment.