Swollen feet usually respond well to a few simple strategies you can start at home right now: elevating your feet above heart level, moving your ankles to pump fluid back up your legs, and reducing salt intake. Most cases of foot swelling are caused by fluid pooling in your tissues after long periods of standing, sitting, or eating salty food. But certain patterns of swelling signal something more serious, so knowing what to watch for matters just as much as knowing how to get relief.
Elevate Your Feet Above Your Heart
The single most effective thing you can do for swollen feet is get them higher than your chest. Gravity is what pulls fluid down into your feet and ankles throughout the day, and elevation reverses that process. Lie on a couch or bed and prop your feet on a stack of pillows so they sit just above heart level. Sitting in a recliner with your legs up helps, but lying flat with your feet elevated works better because the height difference is greater.
There’s no hard rule on exactly how long to keep them up, but 15 to 20 minutes several times a day is a reasonable starting point. If you’ve been on your feet all day, you may need longer. Many people find that elevating their legs in the evening while watching TV makes a noticeable difference by bedtime.
Use Ankle Pumps to Move Fluid
Your calf muscles act like a pump for the veins in your lower legs. Every time you flex and point your foot, those muscles squeeze blood and fluid upward toward your heart. When you sit or stand for hours without moving, that pump barely works, and fluid accumulates.
Ankle pumps are simple: sit or lie down with your legs extended, then point your toes toward your knees as far as you can, then point them away from you as far as you can. Alternate back and forth for two to three minutes, and repeat two to three times per hour when swelling is an issue. You can do these at your desk, on a plane, or in bed. Walking is even better if you’re able to, since it engages the full calf muscle with each step.
Try Compression Socks
Compression stockings apply gentle, graduated pressure to your lower legs, preventing fluid from settling into your feet and ankles. They’re tightest at the ankle and looser as they go up, which helps push fluid back toward the heart. They work best as prevention: put them on in the morning before swelling starts, and wear them through the day.
Compression levels are measured in millimeters of mercury (mmHg), and different levels suit different situations:
- 15 to 20 mmHg: Mild support for early or occasional swelling, tired legs, long flights, or desk jobs.
- 20 to 30 mmHg: Moderate compression for more persistent swelling or after treatment for a diagnosed condition.
- 30 to 40 mmHg: Firm compression typically used for significant, recurring swelling, especially in the lower legs where gravity’s pull is strongest.
For general foot swelling without a diagnosed condition, 15 to 20 mmHg stockings are widely available at pharmacies and online without a prescription. If that level doesn’t control your swelling, a higher grade may help, but it’s worth talking to a provider first to make sure compression is appropriate for your situation.
Cut Back on Salt
Sodium causes your body to hold onto water. The more salt you eat, the more fluid your tissues retain, and your feet and ankles are where that extra fluid tends to show up first. Reducing sodium is one of the most effective dietary changes you can make for swelling.
A reasonable target for most people dealing with fluid retention is under 2,000 mg of sodium per day. For context, a single fast-food meal can easily contain 1,500 mg or more, and many canned soups, frozen meals, and deli meats pack 600 to 800 mg per serving. Reading nutrition labels and cooking more meals at home makes a significant difference. Potassium-rich foods like bananas, sweet potatoes, and spinach can also help your kidneys flush out excess sodium.
Drinking more water, not less, actually helps with fluid retention. When you’re dehydrated, your body holds onto whatever fluid it has. Staying well-hydrated signals your kidneys to release excess water and sodium.
Soak in Epsom Salt
An Epsom salt foot soak won’t address the underlying cause of swelling, but many people find it soothing and it may help temporarily. Fill a basin with enough warm water to cover your ankles, add half a cup of Epsom salt, and soak for about 15 minutes. The warm water can improve circulation, and the magnesium in Epsom salt may help relax muscles and reduce minor discomfort. Use warm water rather than hot, since heat can sometimes make swelling worse.
Check Whether Your Swelling Leaves a Dent
One useful way to gauge the severity of your swelling is to press a finger firmly into the swollen area for a few seconds, then release. If the spot holds an indentation, that’s called pitting edema, and the depth and duration of the dent tell you how much fluid is involved. A shallow 2 mm dent that bounces back immediately is mild. A deeper dent of 5 to 6 mm that takes 15 to 60 seconds to fill back in is moderate. An 8 mm dent that takes two to three minutes to rebound suggests significant fluid accumulation that warrants medical evaluation.
Tracking this over time helps you notice whether your swelling is improving with home measures or gradually getting worse.
When Swollen Feet Need Urgent Attention
Most foot swelling is harmless, but certain patterns point to potentially dangerous conditions. Swelling in only one leg, especially if it’s painful, the skin feels cool, or it looks pale or red, can be a sign of a blood clot in a deep vein. This needs same-day medical attention.
Call emergency services if you have leg swelling along with any of these symptoms:
- Chest pain
- Difficulty breathing or shortness of breath, especially when lying flat
- Fainting or dizziness
- Coughing up blood
These can indicate a blood clot that has traveled to your lungs, which is a medical emergency.
Swelling that appears suddenly with no obvious cause, or swelling following an injury like a fall, sports accident, or car crash, also calls for prompt evaluation. Gradual swelling in both feet that worsens over weeks could point to heart, kidney, or liver issues, particularly if it’s accompanied by weight gain, fatigue, or swelling in your hands or face.
Common Causes Worth Knowing
Understanding why your feet are swelling helps you pick the right strategy. Prolonged sitting or standing is the most common cause, especially in warm weather. Pregnancy causes swelling in most women, particularly in the third trimester, due to increased blood volume and pressure on pelvic veins. Certain medications, including blood pressure drugs, anti-inflammatory painkillers, and hormones, can cause fluid retention as a side effect.
Chronic conditions like heart failure, kidney disease, and venous insufficiency (where the valves in your leg veins don’t work well) cause recurring swelling that needs ongoing management beyond home remedies alone. If your feet swell regularly despite elevation, compression, and dietary changes, the swelling itself may be your body flagging a deeper issue worth investigating.