Elevating your feet, moving around, and using compression are the fastest ways to reduce swelling at home. Most foot swelling happens because gravity pulls fluid downward when you’ve been sitting or standing too long, and reversing that process is straightforward. But the best approach depends on what’s causing the swelling in the first place, and some causes need medical attention rather than home remedies.
Elevate Your Feet Above Your Heart
Elevation is the single most effective immediate remedy. Lying down and propping your feet up lets gravity drain fluid back toward your core. The key detail most people miss: your feet need to be above the level of your heart for this to work well. Stacking pillows while sitting upright in a recliner usually isn’t enough.
Lie flat on your back and rest your legs on a stack of pillows, a cushion on the arm of a couch, or against a wall. An angle of about 30 degrees works well for most people and is comfortable enough to maintain. Research comparing different elevation angles found that 15 minutes in this position measurably reduces leg volume, though 30 minutes at 30 degrees provided both effective drainage and better comfort than steeper angles. Try to do this two or three times a day if swelling is persistent.
Use Ankle Pumps and Gentle Movement
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. When you sit or stand without moving, that pump shuts off and fluid pools.
Ankle pumps are simple: point your toes down, then pull them up toward your shin. Repeat this rhythmically for two to three minutes, and aim to do it two to three times per hour when you’re seated for long stretches. You can also rotate your ankles in circles. These movements are especially useful on long flights, during desk work, or during recovery after surgery. Walking is even better if you’re able to, since it engages the full calf pump with each step.
Try Compression Socks
Graduated compression stockings apply the most pressure at the ankle and gradually decrease up the leg, which helps push fluid upward. They’re available over the counter and come in different pressure levels measured in millimeters of mercury (mmHg).
For mild, everyday swelling, low compression (under 20 mmHg) is a reasonable starting point. For moderate swelling or mild lymphedema, medium compression (20 to 30 mmHg) is more effective. Higher levels exist but typically require a fitting or prescription. The general principle is to use the highest level you can tolerate comfortably. Put them on in the morning before swelling builds up during the day, since they’re much harder to pull on over already-swollen feet.
Reduce Your Salt Intake
Sodium causes your body to hold onto water. If you regularly eat high-sodium foods, processed meals, or restaurant food, the excess salt can contribute to fluid retention throughout your body, including your feet. Cutting back on sodium for even a few days often produces a noticeable difference. Drinking more water can also help your kidneys flush excess sodium, which sounds counterintuitive but works because hydration supports normal kidney function.
Break Up Long Periods of Sitting or Standing
Both prolonged sitting and prolonged standing cause foot swelling, but research shows that simply alternating between the two prevents it. A study comparing uninterrupted sitting, uninterrupted standing, and one-minute sit-to-stand transitions found that the alternating condition was the most effective at preventing leg swelling. Uninterrupted sitting actually produced the most fluid accumulation.
If you work at a desk, set a timer to stand and walk for a minute or two every 30 minutes. If your job requires standing in place, sit down briefly when you can, or shift your weight and do calf raises. A sit-stand desk helps, but only if you actually alternate positions regularly rather than standing motionless for hours.
Check Your Medications
Several common medications cause foot and ankle swelling as a side effect. Blood pressure drugs called calcium channel blockers are among the most frequent culprits. Unlike simple fluid retention, these medications cause swelling by widening the small arteries, which increases pressure inside the capillaries and pushes fluid into surrounding tissue. This type of swelling doesn’t always respond well to water pills.
Other medications known to cause peripheral edema include steroids, anti-inflammatory painkillers (NSAIDs like ibuprofen), certain diabetes medications, estrogen-based hormones, and some blood pressure drugs like hydralazine and minoxidil. If your swelling started or worsened after beginning a new medication, that’s worth raising with your prescriber. Don’t stop taking prescribed medications on your own, but a dosage adjustment or switch to an alternative may resolve the problem.
One Foot vs. Both Feet Matters
Whether swelling affects one foot or both gives important clues about the cause. Swelling in both feet typically points to something systemic: too much salt, medication side effects, prolonged sitting, venous insufficiency, or conditions like heart failure or kidney problems. These causes affect your whole circulatory system, so fluid accumulates symmetrically.
Swelling in just one foot or leg is a different story. When it comes on suddenly, the most important possibility to rule out is a deep vein thrombosis (DVT), a blood clot in the leg. Clues that point toward DVT include swelling concentrated in one entire leg, tenderness along the inner thigh or calf, warmth or redness in the affected leg, and a calf that measures noticeably larger than the other side. Your risk is higher if you’ve been immobile recently, had surgery in the past 12 weeks, have active cancer, or have a history of blood clots. This combination of symptoms needs same-day medical evaluation.
Chronic one-sided swelling is more commonly caused by venous insufficiency or lymphedema, both of which are manageable but benefit from a proper diagnosis.
Signs That Swelling Needs Urgent Attention
Most foot swelling is harmless and responds to the strategies above. But certain patterns signal something more serious:
- Sudden swelling in one leg with pain, warmth, or redness could indicate a blood clot.
- Swelling with shortness of breath may point to a heart or lung problem.
- Pitting edema that leaves a deep dent when you press on it, especially if it’s new or worsening, can reflect heart, kidney, or liver issues.
- Swelling with skin changes like darkening, hardening, or open sores suggests chronic venous insufficiency that needs treatment.
Mild swelling that appears at the end of a long day and resolves overnight is almost always benign. Swelling that persists through the morning, gets progressively worse over weeks, or appears alongside other symptoms warrants investigation.