Sore knees usually respond well to a combination of rest, targeted exercises, and simple lifestyle changes you can start at home. Whether your knee pain comes from overuse, mild injury, or early arthritis, the goal is the same: reduce inflammation, build the muscles that support the joint, and avoid movements that make things worse. Here’s how to do that effectively.
Start With Rest, Ice, and Elevation
When your knees are actively sore, the first step is to calm the inflammation. The RICE method (rest, ice, compression, elevation) works well for this. Apply an ice pack with a cloth barrier for 10 to 20 minutes at a time, repeating every hour or two as needed. Wrap your knee lightly with a compression bandage to limit swelling, and elevate your leg above heart level when you’re sitting or lying down.
This isn’t a long-term fix, but it buys your knee time to settle down so you can move on to more active strategies. A day or two of relative rest is usually enough before you start gentle movement again.
Over-the-Counter Pain Relief
Anti-inflammatory medications like ibuprofen and naproxen reduce both pain and swelling. For ibuprofen, a typical adult starting dose is 400 mg, followed by 200 to 400 mg every four hours as needed, up to four doses in 24 hours. For naproxen, the starting dose is 440 mg, then 220 mg every 8 to 12 hours. Adults over 65 should stick to no more than 220 mg every 12 hours. Drink a full glass of water with each dose of naproxen.
Topical anti-inflammatory gels applied directly to the knee can also help, with the advantage of putting the medication right where you need it and reducing the amount that enters your bloodstream. These are available over the counter at most pharmacies.
Strengthen the Muscles Around Your Knee
This is the single most effective long-term strategy for sore knees. The quadriceps, hamstrings, and hip muscles act as shock absorbers for the knee joint. When they’re weak, the joint itself takes more of the load with every step. A consistent strengthening program, done two to three days per week for four to six weeks, can meaningfully reduce knee pain and improve stability.
The American Academy of Orthopaedic Surgeons recommends a knee conditioning program that includes both stretching and strengthening. Good exercises to start with:
- Half squats: 3 sets of 10, four to five days per week. Stand with feet shoulder-width apart and lower yourself only partway down, keeping your weight in your heels.
- Straight-leg raises: 3 sets of 10, four to five days per week. Lying on your back, tighten your thigh muscle and lift one leg a few inches off the floor, holding briefly.
- Hamstring curls: 3 sets of 10, four to five days per week. Standing and holding a chair for balance, slowly bend one knee to bring your heel toward your backside.
- Calf raises: 2 sets of 10, six to seven days per week. Rise up on your toes and lower slowly.
- Hip abduction: 3 sets of 20, four to five days per week. Lying on your side, lift the top leg straight up, then lower slowly. This strengthens the outer hip muscles that help control knee alignment.
Don’t skip the stretching. A standing quadriceps stretch (pulling your heel toward your backside) and a supine hamstring stretch (lying down with your leg raised) both help keep the muscles around your knee flexible. Do two to three repetitions of each, four to five days per week. Tight muscles pull unevenly on the knee joint, which can make soreness worse even if you’re getting stronger.
Switch to Low-Impact Cardio
Running and high-impact sports hammer the knees. If your knees are already sore, switching to gentler cardio lets you stay active without aggravating the joint. The best options:
- Elliptical machine: The smooth gliding motion gives a full-body workout with very little knee stress.
- Cycling: Builds strong legs and keeps your heart healthy without the pounding of running. Indoor or outdoor both work.
- Rowing machine: Combines cardio and strength training while allowing your knees to move through their full range of motion in a controlled way.
- Pilates: Focuses on controlled movements that strengthen your core and improve balance, all while being easy on the knees.
Swimming and water aerobics are also excellent because buoyancy takes your body weight off the joint entirely.
Lose Weight If You’re Carrying Extra
Your knees bear a multiplied version of your body weight with every step. Being just 10 pounds overweight increases the force on each knee by 30 to 60 pounds per step. That math works in reverse too: losing even a modest amount of weight takes a disproportionately large load off the joint. For people with knee osteoarthritis especially, weight loss is one of the most impactful things you can do.
Braces and Compression Sleeves
These are different tools for different problems. A compression sleeve is a snug elastic tube that slides over your knee. It provides light pressure and warmth, which can reduce mild swelling and make the knee feel more stable during activity. Sleeves are not true braces, and they don’t restrict movement.
A knee brace is a more rigid device made of stiff plastic or metal with cushions and straps. It physically limits how far and how suddenly your knee can move. Braces are typically used for ligament injuries, kneecap instability, patellar tendon problems, and arthritis. If you have a specific structural issue, a brace prescribed or recommended by a physical therapist will do more than a generic sleeve. For general soreness without instability, a compression sleeve during activity is usually sufficient.
Supplements for Knee Pain
Glucosamine and chondroitin are the most widely used supplements for knee pain, particularly from osteoarthritis. The evidence is mixed but leans slightly positive. A combined analysis of 29 studies with over 6,000 participants found that glucosamine or chondroitin taken separately significantly reduced pain, though the combination of the two together did not show the same benefit. Results varied considerably between individual studies.
One consistent finding: pharmaceutical-grade formulations performed better than standard over-the-counter versions. A 2014 analysis of glucosamine studies showed that people using prescription-grade glucosamine had more favorable results. Similarly, a 2019 analysis of chondroitin studies found significant differences between brands, with pharmaceutical-grade preparations showing greater pain reduction. If you try these supplements, quality matters more than brand recognition.
When Home Remedies Aren’t Enough
If your knee pain persists despite several weeks of strengthening, weight management, and anti-inflammatory treatment, cortisone injections are a common next step. A single injection typically provides relief for three to six months when it works well. These injections reduce inflammation directly inside the joint and can give you a window of reduced pain to make progress with physical therapy.
Signs That Need Urgent Attention
Most sore knees are manageable at home, but certain symptoms point to something more serious. Get to urgent care or an emergency room if your knee joint looks bent or deformed, you heard a popping sound at the time of injury, you can’t bear weight, the pain is intense, or the knee swelled up suddenly. Call your doctor’s office if your knee is badly swollen, red, warm and tender to the touch, or if you develop a fever alongside knee pain. A hot, red, swollen joint with fever can signal an infection that needs prompt treatment.