How to Reduce Edema in Feet: Causes & Safe Relief

Swollen feet can seem harmless after a long day, but when the swelling keeps returning or appears without an obvious reason, it is worth understanding what is causing it.

Sometimes the cause is as simple as standing for hours, hot weather or a salty meal. In other cases, swelling may be linked to circulation problems, medicines or an underlying health condition. The key is knowing when simple measures may help and when the swelling needs medical attention.

In this guide, we explain what causes swollen feet, how to reduce swelling safely, when compression stockings may help, and which warning signs should not be ignored.

What is edema or oedema?

Oedema, also spelled edema, is swelling caused by excess fluid building up in the body's tissues. It commonly affects the feet, ankles and lower legs.

Pitting oedema is a type of swelling where pressing the skin leaves a temporary indentation or “pit.” Oedema may develop after prolonged sitting or standing, during pregnancy or hot weather, or because of problems involving the veins, lymphatic system, medicines, heart, kidneys or liver.

What Can Trigger Oedema in the Feet?

Hot weather, swollen feet after standing all day, a salty meal, long sitting, or tight garments can all nudge fluid downwards. Some medicines that cause swelling (e.g., certain blood-pressure tablets, NSAIDs, diabetes, and hormone meds) add to it.

A large Australian study published in Wound Practice and Research in 2025, involving 459 older adults receiving home care, found that 38.1% had chronic lower‑limb oedema. 

Calcium-channel blockers, a frequent blood-pressure treatment, cause ankle oedema in roughly 1–15% of users (dose and drug type matter). Pregnancy also raises the chance of swelling, while ongoing swelling can signal vein, lymph, heart, kidney, or liver issues that need a GP check.

Treatment for swelling in legs and feet (what to do today)

Do the simple things that move fluid up and out, and cut the drivers that pull it down:

• Move every 30–60 minutes. Flex and point your ankles, do a short hallway lap. Sitting or standing still lets fluid pool; gentle movement keeps the calf “pump” working.
• Raise your legs above heart level. For venous swelling, aim for 5–15 minutes, 3–4×/day; for lymph-type swelling, longer sessions (about 45 minutes, 2–3×/day) are often taught in the clinic. Use pillows and breathe normally.
• Cut back on salt today. Target ≤2,000 mg sodium/day (~5 g salt); the average Australian eats ~9 g salt/day (almost double). Lower salt helps your body shift extra fluid.
• Drink water steadily. Being well-hydrated helps your body clear sodium; a well-hydrated body is less likely to retain fluid. Sip through the day (unless your clinician sets a fluid limit).
• Choose comfy footwear and socks. Avoid tight bands around the calf or ankle; they trap fluid. Wear supportive shoes/socks that don’t dig in.
• Use graduated compression stockings if suitable. They give the firmest squeeze at the ankle and lighter upwards to push fluid back. Clinic guidance often starts at 15–20 mmHg for mild swelling; higher levels are used under medical advice. Evidence shows compression boosts venous flow and helps control leg volume in swelling-prone groups.
• Call your GP/000 right away for one-sided swelling, sudden swelling with pain or warmth, breathlessness, or chest pain; ongoing or unexplained swelling also needs a check.

This is your quick, same-day plan. For long-running swelling, your GP may review medicines, check veins/heart/kidneys, and decide if diuretics are needed.

How long should I keep my legs raised?

If you’re wondering about leg elevation for swelling, use 5–15 minutes, 3–4 times daily for typical venous swelling. Keep heels supported and knees relaxed.

Can I walk if my feet are swollen?

Yes, short, frequent walks wake up the calf pump and help shift fluid. Studies also show compression increases deep-venous flow while you move, so wearing stockings during the day plus walking works well. (Think little-and-often laps.) This answers walking for swollen feet.

Do I drink more water or less?

Steady hydration helps your body get rid of extra sodium, which can ease fluid retention. Sip water throughout the day unless your clinician sets limits for a specific condition. That’s the simple take on hydration and swelling.

What Causes Oedema in the Feet?

Foot and ankle swelling can have many causes. Some are temporary, while others need medical assessment.

Pattern or situation	Possible explanation
Swelling after standing or sitting for hours	Fluid pooling in the lower legs
Swelling during hot weather	Heat-related widening of blood vessels can contribute to fluid moving into surrounding tissues
Heavy or aching legs with varicose veins	Chronic venous insufficiency may be contributing
Pregnancy	Hormonal changes and pressure on the veins can contribute to swelling
Swelling after an injury	Local inflammation or tissue injury
Persistent swelling affecting one or both legs	Venous or lymphatic problems may need assessment
Swelling after starting a medicine	Some blood-pressure medicines, anti-inflammatory medicines and hormones can contribute
Swelling with breathlessness or other systemic symptoms	Heart, kidney, liver or other medical conditions should be considered

The location and timing of the swelling are important clues. Sudden swelling in one leg should be assessed promptly because conditions such as a blood clot, infection or injury may need to be ruled out.

When Should You Worry About Swollen Feet?

Arrange prompt medical assessment if:

• swelling develops suddenly in one leg
  
• the swollen area is painful, red or unusually warm
  
• swelling is persistent or repeatedly returns without an obvious explanation
  
• you have significant skin changes, wounds or signs of infection
  
• swelling began after starting or changing a medicine
  
• the swelling is becoming progressively worse

Call Triple Zero (000) in Australia for an ambulance if swelling occurs with severe or sudden shortness of breath, chest pain, fainting or other symptoms suggesting a medical emergency.

Sudden unilateral lower-limb oedema requires timely assessment for conditions such as DVT, while Healthdirect specifically advises emergency care when pulmonary oedema is suspected.

Mini routine you can do at your desk or couch

Quick set you can sneak in during breaks:

• 60-second ankle circles
• 10 calf raises
• 5 minutes feet-up on a pillow

This covers your ankle pump exercises for swelling, gives you simple exercises for foot oedema, and is a no-frills way to raise feet to reduce swelling without leaving the couch.

Can Diet Help With Fluid Retention?

Reducing excessive sodium may help some people who are prone to fluid retention. Choose mostly fresh foods and compare packaged foods for sodium where practical.

Do not deliberately increase potassium through supplements or a high-potassium diet to treat oedema without medical advice. People with some kidney conditions or those taking certain medicines may need to limit potassium rather than increase it.

Why Do My Feet Keep Swelling?

Repeated or persistent swelling deserves investigation because treatment depends on the underlying cause.

A GP may ask when the swelling started, whether one or both legs are affected, what medicines you take and whether you have symptoms suggesting a vein, heart, kidney, liver or lymphatic problem.

Depending on the findings, further tests may be needed. Treatment is then directed at the cause rather than simply trying to remove the fluid.

Diuretics, sometimes called water tablets, are appropriate for certain systemic causes of fluid retention but are not a routine treatment for every swollen ankle or foot.

Studies show diuretics can lower swelling and breathlessness in heart patients, but they’re not a routine fix for everyday ankle puffiness.

That last point is important: clinical guidance states diuretics should generally be used for systemic causes of oedema rather than nonsystemic swelling.

Special situations: make a small tweak, get a big win

Every day, swelling gets tougher in certain life moments, but a few smart tweaks can keep things under control.

Pregnancy and hot days

Swelling in late pregnancy is common because extra blood volume and hormones relax the veins. For pregnancy swollen feet relief, try:

• Cool breaks: soak feet in cool water or rest with a fan under the desk.
• Feet-up time: a few minutes with legs raised higher than your hips between chores.
• Light walks: short strolls keep circulation moving.
• Maternity compression socks: gentle support (15–20 mmHg) designed for comfort during pregnancy.

During pregnancy, swelling can feel worse on warm days, and one simple way to manage it is knowing when to Wear Compression Socks During Pregnancy so you get the right support exactly when your legs need it most.

Summer heat adds another layer. Simple summer swollen feet tips: wear breathable shoes, stay shaded, and sip water often.

Long flights and long drives

Sitting still for hours lets fluid pool. The fixes are small but powerful:

• Move every hour: aisle walk on flights, rest stops on drives.
• In-seat stretches: flex/point your ankles, roll your shoulders, draw circles with your toes.
• Travel socks for swelling: mild compression travel stockings improve blood circulation and reduce swollen feet on long flights.
• Hydration + posture: steady water intake, avoid crossing legs, keep shoes slightly loose.

For long flights or drives, wearing the right support can make a big difference. Here’s more on What Compression Stockings Do for Travel.

These habits also prevent ankle swelling when flying and cut the risk of blood clotting.

In pregnancy, a small tweak like knowing when to Wear Compression Socks During Pregnancy can make swelling easier to manage.

Desk jobs and retail shifts

Long hours at work challenge circulation differently: sitting slows the calf pump, while retail shifts keep you upright all day. For both:

• Timers for movement: stand, stretch, or walk 2–3 minutes each hour.
• Under-desk ankle pumps: quiet, unnoticed but effective.
• Footwear check: supportive shoes with roomy toe boxes and cushioning are the best shoes for swollen feet.
• Job-specific hacks: a stool behind the counter for quick leg breaks if you stand; a footrest under the desk if you sit.

These little adjustments reduce swelling from standing all day or staying in one chair too long.

Before we wrap up, if ankle puffiness is your main concern, check out How to Get Rid of Swollen Ankles Fast for quick, practical tips.

Conclusion: You’ve got options. Now start small & be consistent

Swelling in the feet often starts with everyday things, long hours standing, hot days, salty meals, but small shifts make a big difference. We’ve walked through spotting oedema swelling, quick fixes like leg raises and ankle pumps, safe times to see your GP, and how lifestyle tweaks around food, movement, and cooling can ease the load.

The takeaway is simple: build tiny habits into your day and use the right tools to keep swelling under control. Pair your daily stretches with our trusted compression stockings and compression wraps from brands like Juzo, Jobst, Sigvaris, and Venosan. Explore more at Compression Stockings Online.

Frequently Asked Questions on Oedema 

Can Vitamins Get Rid of Oedema?

There is no vitamin that reliably treats oedema from all causes. Swelling can result from venous, lymphatic, medication-related or systemic medical problems, so treatment should address the cause rather than relying on supplements.

What foods trigger edema?

Highly processed foods high in sodium, like cured meats, packet snacks, instant noodles, and salty sauces, are common triggers of fluid retention in the legs. Cutting them back is one of the fastest ways to ease swelling.

How Is Persistent Oedema Treated?

Treatment depends on the cause. Venous swelling may be managed with movement, elevation and compression therapy, while lymphoedema may require specialised compression, exercise, skin care and lymphatic therapy. Systemic conditions may require medicines or other treatment prescribed by a doctor.

What is the natural diuretic?

Foods like dandelion tea, parsley, cucumber, and watermelon act as mild natural diuretics. They support hydration and may help ease swollen feet slightly, though they aren’t replacements for prescribed treatment.

Which fruit is best for edema?

Bananas, oranges, and kiwis are potassium-rich, helping the body counter sodium’s effects. This makes them smart fruit choices when dealing with foot oedema.

Can compression stockings be worn daily for swelling?

Yes. Graduated stockings are designed for daily use and work best when worn during the day and removed at night. They reduce oedema swelling by improving circulation.

Is walking good for swollen feet?

Gentle walking can help when it is safe and comfortable because contracting the calf muscles assists blood flow from the lower legs back towards the heart. Frequent short walks can therefore help reduce the pooling associated with prolonged sitting or standing.

If swelling is caused by an injury, severe pain or another medical problem, ask a health professional what level of activity is appropriate.