What Is a Corticosteroid Injection? Your Questions Answered

Knee Pain - a patient considering a corticosteroid injection for joint pain relief

What Is a Corticosteroid Injection? Your Questions Answered

Corticosteroid injections are commonly used to reduce inflammation and relieve pain caused by various medical conditions. If your doctor has recommended one, you probably have questions about how these injections work, what to expect, and why they are sometimes limited. 

What Is a Corticosteroid Injection?

A corticosteroid injection is a shot containing medication designed to reduce inflammation and pain. Corticosteroids mimic cortisol, a hormone your body naturally produces to help manage stress, reduce inflammation, and regulate various functions. Doctors often use these injections to treat conditions like arthritis, tendonitis, bursitis, and joint pain.

How Long Do Corticosteroid Injections Last?

The effects of a corticosteroid injection can vary depending on the person and the condition being treated. Some people experience relief for a few weeks, while others may notice improvements lasting several months. Factors like the location of the injection, the severity of inflammation, and how your body responds to the medication can all influence how long the relief lasts.

Why Do Doctors Limit Corticosteroid Injections?

Doctors are often cautious about giving too many corticosteroid injections in the same area because repeated use can weaken tissues like cartilage, ligaments, and tendons. Physicians may recommend limiting corticosteroid shots to three or four per year in a single joint. Overuse can lead to joint damage, so following your doctor’s guidance is important.

What Is the Downside of a Corticosteroid Injection?

While corticosteroid injections can provide significant pain relief, they aren’t without potential side effects. Some possible downsides include:

  • Temporary pain or swelling (sometimes called a cortisone flare)
  • Thinning or lightening of the skin at the injection site
  • Weakening of tendons or cartilage over time
  • Temporary increase in blood sugar levels, particularly in people with diabetes

Most side effects are mild and temporary, but discussing any concerns with your healthcare provider is important.

Why Can’t You Shower After a Corticosteroid Injection?

Doctors often advise waiting at least 24 hours before showering after receiving a corticosteroid injection. This precaution helps prevent infection, especially if a bandage or dressing is placed over the injection site. Avoid soaking in a bath, pool, or hot tub until your doctor says it’s safe.

What Should You Avoid After a Corticosteroid Injection?

To give your body time to absorb the medication and reduce inflammation, avoid strenuous activities like heavy lifting or vigorous exercise for at least 48 hours after the injection. Resting the treated area helps the injection work more effectively and minimizes the risk of complications.

Take the Next Step

If you’re considering a corticosteroid injection to manage pain or inflammation, getting the right information and guidance is important. Our pain management specialists are here to help you understand your options. Call 972-316-7270 or schedule an appointment to learn more.