What treatments and daily changes can help knee arthritis

Knee arthritis treatment depends on how much damage is present, how much pain you have, and how much the condition limits what you do. Most people start with a combination of over-the-counter pain relief, physical activity changes, and weight management if that applies. If those do not reduce pain enough, your doctor can prescribe stronger medication, inject medication directly into the knee, or refer you to physical therapy. Surgery is an option when other treatments stop working, but it is not the first step.

The goal of treatment is to reduce pain, keep the knee moving, and slow further damage. What works varies widely between people. Some find that a single change—like losing weight or doing specific exercises—makes a real difference. Others need several approaches at once. Your doctor can help you figure out what to try first based on your situation.

Key Takeaways

  • Over-the-counter pain relievers like ibuprofen and acetaminophen are usually the first step, though they work better for some people than others.
  • Physical therapy and low-impact exercise like walking or swimming can reduce pain and improve knee function without medication.
  • Injections of corticosteroids or hyaluronic acid into the knee joint can provide relief for weeks or months when pills are not enough.
  • Weight loss, if you are overweight, reduces stress on the knee joint and often improves pain and function.
  • Knee replacement surgery is an option when other treatments no longer control pain or when arthritis severely limits daily activities.

Pain relief medications you can buy without a prescription

Ibuprofen (Advil, Motrin) and naproxen (Aleve) are nonsteroidal anti-inflammatory drugs, or NSAIDs. They reduce both pain and swelling. Acetaminophen (Tylenol) reduces pain but does not reduce inflammation. For knee arthritis, NSAIDs often work better than acetaminophen because they address the swelling that contributes to pain.

Take these medications regularly rather than only when pain is severe—they work better that way. Follow the dosage on the package, and do not exceed the maximum daily amount. If you take these drugs regularly for more than a few weeks, talk to your doctor first. Long-term use can cause stomach problems, kidney issues, or heart problems, especially if you have other health conditions or take other medications.

Topical creams and gels that contain NSAIDs or capsaicin (a compound from hot peppers) can be rubbed directly on the knee. They work for some people and carry less risk of stomach or kidney problems than pills, though they usually provide milder relief.

Prescription medications when over-the-counter drugs are not enough

If over-the-counter pain relievers do not control your pain, your doctor can prescribe stronger NSAIDs or other medications. Duloxetine is an antidepressant that also reduces chronic pain and is sometimes prescribed for arthritis. Your doctor might also prescribe topical creams with stronger active ingredients than those sold over the counter.

Some people are prescribed opioid pain medications for knee arthritis, though doctors now prescribe these less often because of addiction risk and because they do not work well for long-term arthritis pain. If your doctor suggests opioids, ask about other options first and discuss the risks.

Injections directly into the knee joint

Corticosteroid injections deliver anti-inflammatory medication directly into the joint. They usually reduce pain for weeks to a few months. Your doctor uses ultrasound or X-ray to guide the needle into the joint space. The procedure takes about 15 minutes, and you can usually go home the same day. Most insurance plans cover these injections, though you may have a copay.

Hyaluronic acid injections (sometimes called viscosupplementation) add a lubricating substance to the joint fluid. They may reduce pain and improve movement, though research shows mixed results—they help some people significantly and do not help others. A series usually involves three to five injections given a week apart. Insurance coverage varies; some plans cover them and others do not.

Both types of injection can be repeated, but there are limits. Corticosteroid injections are usually not given more than three or four times per year to the same joint. Hyaluronic acid injections can typically be repeated yearly. Your doctor will discuss how often you can safely have injections.

Physical therapy and exercise

Physical therapy teaches you exercises that strengthen the muscles around the knee, improve flexibility, and reduce pain. A physical therapist will show you how to do exercises correctly so you do not injure yourself. Sessions typically last 30 to 60 minutes, and you usually attend two to three times per week for four to eight weeks, though this varies.

Low-impact activities like walking, swimming, water aerobics, and cycling are gentler on the knee than running or jumping. Start slowly and increase gradually. Even 20 to 30 minutes of activity most days of the week can reduce pain and improve function. Heat before exercise (a warm shower or heating pad) and ice after exercise (15 to 20 minutes) can help manage pain.

Your doctor can refer you to physical therapy, or you can find a physical therapist through your insurance plan's provider directory. Insurance usually covers physical therapy when a doctor refers you, though you may have a copay per visit.

Weight loss and other daily changes

If you are overweight, losing weight reduces the load on your knee joint. Even a 5 to 10 percent reduction in body weight can improve pain and function. Weight loss also slows the progression of arthritis. Talk to your doctor about a realistic weight loss plan; crash diets do not work for long-term results.

Other changes that help include wearing supportive shoes, using a cane or knee brace to reduce stress on the joint, and avoiding activities that make pain worse. Some people find that applying heat before activity and ice after activity helps. Keeping the knee moving—even gently—is important; prolonged rest can make stiffness worse.

Knee replacement surgery

Knee replacement is an option when arthritis is severe, other treatments no longer control pain, and the condition significantly limits your daily life. In this surgery, the damaged parts of the knee joint are removed and replaced with artificial components made of metal and plastic. The surgery takes about one to two hours, and most people stay in the hospital for one to three days.

Recovery involves physical therapy to regain strength and movement. Most people can return to light activities within six weeks and resume normal activities within three to six months. Pain relief is usually significant, though some people experience mild discomfort or stiffness long-term. Artificial knees typically last 15 to 20 years, so younger people may need a second replacement later.

Surgery carries risks including infection, blood clots, and nerve or blood vessel damage, though these are uncommon. Your surgeon will discuss whether you are a good candidate based on your age, overall health, and the severity of your arthritis. Insurance covers knee replacement when it is medically necessary, though you will have out-of-pocket costs depending on your plan.

Frequently Asked Questions

Can knee arthritis get better on its own?

Arthritis does not reverse, but pain and function can improve with treatment. Many people find that a combination of exercise, weight loss, and pain relief significantly reduces symptoms. Some people have periods where pain is worse and periods where it is better, even without treatment changes.

How do I know if I need surgery?

Surgery is considered when other treatments no longer control pain and arthritis limits your daily activities—work, hobbies, or basic tasks like walking or climbing stairs. Your doctor will discuss whether surgery makes sense for your situation. You do not have to have surgery just because you have arthritis.

Is it safe to exercise if my knee hurts?

Low-impact exercise usually helps arthritis pain, but sharp pain during activity is a sign to stop. Work with a physical therapist to learn which movements are safe for you. Pain that lasts hours after exercise means you did too much; scale back next time.

Will losing weight really help my knee pain?

Weight loss reduces stress on the joint and often improves pain and function, especially if you are significantly overweight. Even modest weight loss can make a difference. Talk to your doctor about realistic goals for your situation.

How long do corticosteroid injections last?

Relief usually lasts four to twelve weeks, though it varies. Some people get several months of relief; others get only a few weeks. You can have injections repeated, but typically not more than three or four times per year to the same joint.