Swollen feet and ankles usually respond well to a combination of elevation, movement, compression, and dietary changes. Most cases stem from fluid pooling in the lower legs after prolonged sitting or standing, and the fastest relief comes from getting your feet above heart level while gently pumping your ankles to push fluid back toward your core. Here’s how to tackle swelling from multiple angles.
Elevate Your Feet Above Your Heart
The simplest and most immediate way to drain excess fluid is gravity. Lie down and prop your feet on a stack of pillows, the arm of a couch, or a wall so they sit higher than your chest. This position lets fluid that has settled in your lower legs flow back into your circulatory system naturally. Aim for 20 to 30 minutes at a time, and repeat several times throughout the day if swelling is persistent. Even a slight incline helps, but getting your feet truly above heart level makes the biggest difference.
Use Ankle Pumps to Activate Your Calf Muscles
Your calf muscles work like a second pump for your circulatory system. Every time they contract, they squeeze the veins in your lower legs and push blood and fluid upward. When you sit or stand for hours without moving, that pump goes idle and fluid accumulates.
Ankle pumps are the easiest way to restart it. Sit or lie down with your legs extended, then point your toes toward your knees as far as you can, hold briefly, and point them away from you. Alternate back and forth for two to three minutes, and repeat two to three times per hour. You can do this at your desk, on a plane, or while watching TV. Walking is even better if you’re able to get up, since each step engages the full calf muscle. Even short walks of five to ten minutes throughout the day can noticeably reduce end-of-day swelling.
Try Compression Socks
Compression socks apply graduated pressure to your lower legs, with the tightest squeeze at the ankle that gradually loosens toward the knee. This external pressure helps prevent fluid from pooling and supports your veins in moving blood upward.
For mild, occasional swelling, socks rated at 15 to 20 mmHg provide gentle support and are widely available without a prescription. They’re a good starting point for long flights, desk jobs, or days on your feet. If that level doesn’t control your swelling through a full day (your shoes still feel tight by evening, or you notice sock-line indentations), stepping up to 20 to 30 mmHg provides moderate, more therapeutic compression. Socks rated at 30 to 40 mmHg are firmer and typically reserved for people with chronic swelling or vein disease.
Put compression socks on first thing in the morning before swelling has a chance to build. If you wait until your ankles are already puffy, the socks are harder to pull on and less effective.
Cut Back on Sodium
Excess sodium causes your body to hold onto water, and that extra fluid often settles in your feet and ankles. The American Heart Association recommends no more than 1,500 mg of sodium per day for optimal health, though many guidelines set the ceiling at 2,000 to 2,300 mg. For context, a single fast-food meal can easily exceed 1,500 mg on its own.
The biggest sources of hidden sodium are processed and packaged foods: canned soups, deli meats, frozen meals, bread, sauces, and condiments. Cooking at home with fresh ingredients gives you far more control. When reading labels, look for sodium per serving rather than per package, since many packages contain multiple servings. Even a modest reduction, cutting from 3,500 mg to under 2,000 mg per day, can produce a noticeable decrease in fluid retention within a few days.
Stay Hydrated and Watch Your Magnesium
It sounds counterintuitive, but drinking more water can actually reduce swelling. When you’re dehydrated, your body compensates by retaining the fluid it has, which worsens puffiness. Steady water intake throughout the day signals your kidneys to release excess fluid normally.
Magnesium plays a role in how your body manages fluid balance, helping transport calcium and potassium across cell membranes. Low magnesium levels are common and can contribute to water retention. Adult women need 310 to 320 mg per day, and adult men need 400 to 420 mg. Good food sources include dark leafy greens, nuts, seeds, beans, and whole grains. If you’re considering a supplement, the tolerable upper limit for supplemental magnesium is 350 mg per day. Higher doses from supplements (not food) can cause digestive issues.
Contrast Water Therapy
Alternating between warm and cool water creates a pumping effect in your blood vessels: warm water dilates them, and cool water constricts them. This rhythmic change helps push stagnant fluid out of your tissues. Fill two basins, one with warm water (around 102°F or 39°C) and one with cool water (around 60°F or 16°C). Soak your feet in the warm basin for three minutes, switch to the cool basin for one minute, then return to warm. Continue alternating for about 15 minutes total, ending on the cool soak. This works well as an evening routine after a long day.
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, are among the most frequent culprits. Nearly half of people taking these drugs experience some degree of lower-leg swelling. Other medications associated with swelling include beta blockers, hormone therapies (estrogen, progesterone, testosterone, and corticosteroids), anti-seizure medications like gabapentin and pregabalin, certain antidepressants, NSAIDs like ibuprofen, and some diabetes medications.
If your swelling started or worsened after beginning a new medication, that’s worth flagging to your prescriber. Adjusting the dose or switching to an alternative often resolves the problem. Don’t stop a prescribed medication on your own.
When Swelling Signals Something Serious
Most foot and ankle swelling is harmless, especially if it’s mild, affects both sides equally, and improves overnight. But certain patterns warrant prompt medical attention:
- Sudden swelling in one leg only can indicate a blood clot (deep vein thrombosis), particularly if accompanied by pain, warmth, or redness in the calf.
- Swelling with skin changes like thickening, discoloration, or sores that won’t heal may point to chronic vein disease.
- Persistent swelling in both legs that doesn’t respond to elevation and basic measures can be related to heart, kidney, or liver conditions.
- Swelling with shortness of breath or chest tightness needs immediate evaluation, as this combination may signal a heart problem.
Swelling During Pregnancy
Some ankle swelling during pregnancy is completely normal, especially in the third trimester, as your body carries extra blood volume and your growing uterus puts pressure on the veins returning blood from your legs. Elevation, compression socks, and gentle movement all help.
What isn’t normal is sudden or severe swelling of the hands, arms, or face, or rapid weight gain from fluid retention. These can be signs of preeclampsia, a serious pregnancy complication involving high blood pressure. If swelling comes with a severe headache, vision changes, or upper abdominal pain, that requires immediate medical attention. Ankle puffiness alone is rarely cause for alarm, but swelling that moves into your hands and face, or appears suddenly, is a different situation entirely.