Swollen feet usually improve with a few straightforward measures: elevating your legs above heart level, moving around regularly, cutting back on salt, and wearing compression socks. Most swelling in the feet and ankles comes from fluid pooling in the lower legs due to gravity, prolonged sitting or standing, high sodium intake, or hormonal changes. The fixes are simple, but knowing which ones to prioritize and when swelling signals something more serious makes a real difference.
Elevate Your Feet Above Your Heart
The single fastest way to reduce swollen feet is to lie down and prop your legs up so your feet sit above the level of your heart. This lets gravity work in your favor, helping fluid drain back toward your core instead of pooling in your ankles and toes. A stack of pillows, a wedge cushion, or the arm of a couch all work. The key detail most people miss is height: your feet need to be above your heart, not just slightly raised. Sitting in a recliner with your feet at hip level helps a little, but lying flat with your legs elevated on two or three pillows is far more effective.
Try to hold this position for 15 to 20 minutes at a time, several times a day if swelling is persistent. Many people notice visible improvement after just one session.
Move Your Feet and Ankles Often
Sitting or standing in one position for hours lets fluid settle into your lower legs. Even small movements activate the calf muscles, which act as a pump to push blood and fluid back up toward the heart. If you can’t get up and walk around, ankle pumps are an effective alternative: point your toes toward your knees, then point them away from you, alternating back and forth for two to three minutes. Repeat this two to three times per hour when you’re sitting for long stretches, such as on a flight or at a desk.
Walking is the best option when it’s available. Even a five-minute walk every hour makes a measurable difference compared to staying still. Research from NIOSH (the occupational safety branch of the CDC) found that dynamic movement was the most effective intervention for reducing swelling and discomfort from prolonged standing, more so than floor mats or special footwear alone. If your job keeps you on your feet all day, the goal is to shift positions frequently: alternate between standing, sitting, walking, and leaning throughout your shift rather than locking into one posture.
Reduce Your Sodium Intake
Salt causes your body to hold onto water, and that extra fluid tends to show up in your feet and ankles first. The American Heart Association recommends staying under 1,500 mg of sodium per day. For context, a single fast-food meal can contain 2,000 mg or more. The biggest sources of hidden sodium aren’t the salt shaker on your table. They’re processed foods: canned soups, deli meats, frozen meals, bread, sauces, and restaurant dishes.
Cutting sodium doesn’t have to mean bland food. Seasoning with herbs, citrus, garlic, and spices replaces the flavor without the fluid retention. Most people who reduce their sodium intake notice less puffiness within a few days.
Drink More Water, Not Less
It sounds backward, but drinking more water actually helps reduce swelling. When you’re dehydrated, your body holds onto fluid as a protective measure. Staying well-hydrated makes it easier for your kidneys to flush out excess salt and waste, which reduces the fluid buildup that causes puffy feet. Aim for steady water intake throughout the day rather than large amounts all at once.
Try Compression Socks
Compression socks apply gentle, graduated pressure to your lower legs, preventing fluid from accumulating in your feet and ankles. They’re tightest at the ankle and gradually loosen toward the knee, which helps push fluid upward.
For everyday swelling from sitting, standing, or travel, over-the-counter socks in the 15 to 20 mmHg range provide mild support and are comfortable enough for all-day wear. If you have more persistent swelling, a moderate level of 20 to 30 mmHg is the most commonly recommended option for managing lower-leg fluid retention. Anything above 30 mmHg is considered firm compression and is typically reserved for more significant swelling under clinical guidance.
Put compression socks on first thing in the morning, before swelling builds up during the day. They’re much harder to get on over already-swollen feet, and they work best as prevention rather than treatment after the fact.
Check Your Medications
Certain blood pressure medications, particularly a class called calcium channel blockers, are well-known for causing foot and ankle swelling. The incidence ranges from about 1 to 15% of patients at standard doses, but at higher doses it can affect the majority of people taking them. If your feet started swelling after beginning a new medication or after a dose increase, that connection is worth raising with your prescriber. In many cases, adding or switching to a different type of blood pressure drug can reduce swelling by nearly 40% compared to taking the calcium channel blocker alone.
Other medications that commonly cause foot swelling include certain diabetes drugs, steroids, hormone therapies, and some antidepressants. Don’t stop a medication on your own, but do ask whether a swap is possible if swelling is bothering you.
Swelling During Pregnancy
Some degree of foot swelling is completely normal during pregnancy, especially in the third trimester. Extra blood volume, hormonal changes, and the weight of the uterus pressing on veins all contribute. Elevation, gentle walking, and comfortable shoes with good support are the go-to remedies.
What isn’t normal is sudden swelling, particularly in your face and hands. A rapid onset of puffiness, especially paired with headaches, vision changes, or upper abdominal pain, can signal preeclampsia, a serious pregnancy complication that requires immediate medical attention. Gradual ankle swelling that worsens over the course of a day and improves overnight is the expected pattern. Anything sudden or accompanied by other symptoms is a different situation entirely.
Do Epsom Salt Soaks Work?
Soaking your feet in warm water with Epsom salts is a popular home remedy, and many people find it soothing. There is some limited evidence that Epsom salt soaks may help reduce foot swelling during pregnancy, but the overall scientific support is thin. The warm water itself may help with circulation and comfort, and the ritual of sitting with your feet up while soaking certainly doesn’t hurt. Just don’t rely on it as your primary strategy. Elevation, movement, and sodium reduction have far stronger evidence behind them.
When Swelling Is a Warning Sign
Most foot swelling is harmless and temporary. But certain patterns deserve prompt attention. Swelling in only one leg, especially when accompanied by pain, warmth, redness, or a cramping sensation in the calf, can indicate a deep vein thrombosis (a blood clot). This is a medical emergency because the clot can travel to the lungs.
Other red flags include swelling that doesn’t improve with elevation, swelling that leaves a visible dent when you press on it and hold for several seconds (called pitting edema), shortness of breath alongside swollen feet, or skin that looks stretched, shiny, or discolored. These patterns can point to heart, kidney, or liver problems that need evaluation. Swelling that comes on gradually over weeks and keeps getting worse, rather than fluctuating with activity and rest, also warrants a visit to your doctor.