Cortisone Shot: What It Is and How It Works

If you’ve been sent to a clinic for a cortisone shot, you probably wonder what’s actually happening under the skin. In simple terms, a cortisone shot is an injection of a powerful anti‑inflammatory steroid. The medication slides straight into the inflamed tissue—often a joint, tendon or bursa—to calm swelling and cut pain fast.

The drug isn’t a miracle cure; it’s a tool doctors use when other treatments (like oral meds or physical therapy) haven’t helped enough. Most people feel relief within a few days, but the full effect can take up to two weeks as the steroid settles in.

When Doctors Recommend a Cortisone Shot

Typical reasons for the injection include:

• Sharp knee or shoulder pain that limits daily activities.
• Inflamed elbows (tennis elbow) or wrists (carpal tunnel) that haven’t improved with rest.
• Bursitis, where a fluid‑filled sac near a joint gets painful.
• Arthritis flare‑ups that need quick symptom control.

Doctors usually try the shot after confirming there’s no infection and after imaging (like an X‑ray) shows the problem area. They’ll also discuss how many shots are safe—generally not more than three to four in a year for the same spot—to avoid weakening tissue.

After the Injection: Tips for Recovery

The moment the needle is out, you can start easing back into normal life, but a few smart moves speed up healing:

• Rest the area for 24‑48 hours. Light movement is fine; avoid heavy lifting or intense sports right away.
• Apply ice. A cold pack for 15 minutes, three times a day, reduces any lingering soreness.
• Stay hydrated. Fluids help your body process the steroid and flush out waste.
• Follow up with gentle exercises. Your doctor may suggest range‑of‑motion stretches to keep joints flexible.
• Watch for warning signs. If you get fever, increasing redness or worsening pain, call your clinic—these could signal infection.

Most people notice a drop in pain and swelling within a week. Keep track of how you feel; if relief is short‑lived, discuss alternative treatments with your doctor instead of stacking more shots.

In short, a cortisone shot is a fast‑acting way to tame inflammation when other options fall short. Knowing why it’s used, what to expect during the procedure and how to care for yourself afterward can make the experience smoother and help you get back to everyday activities quicker.