A cortisone shot delivers a synthetic steroid directly into a specific area of the body. These injections reduce inflammation and alleviate pain, particularly in musculoskeletal conditions that commonly affect runners, such as patellofemoral pain (runner’s knee), IT band syndrome, hip bursitis, and tendinitis. This localized treatment helps individuals manage their symptoms and progress with rehabilitation.
The Waiting Period for Running
After a cortisone injection, a waiting period before resuming running is advised. For injections in the leg, hip, or back, it is recommended to avoid running for at least one week. If the injection was administered to an upper limb, a shorter rest period of two days may be sufficient before light activity. This rest period is important for several reasons.
One reason for the waiting period is to allow the cortisone to take full effect. While some immediate pain relief might occur due to a local anesthetic, the corticosteroid itself often requires three to seven days to begin noticeably reducing inflammation. For some, significant relief may take up to two weeks, and the full benefits could be observed after six weeks. Protecting the injection site during this initial phase helps ensure the medication remains concentrated in the targeted area for maximum therapeutic impact.
Resting helps prevent potential damage to tissues, especially tendons, which can be temporarily weakened by cortisone. Early, high-impact activities like running might stress the healing area, potentially increasing the risk of adverse effects like cartilage damage. Some individuals may experience a “cortisone flare,” a temporary increase in pain and inflammation at the injection site, which occurs within 24 to 48 hours and can last for three to five days, or occasionally up to a week. Always follow the specific advice provided by your healthcare provider, as recovery timelines can vary based on the individual, injection site, and condition.
Gradual Return to Activity
Once the recommended waiting period has passed, returning to running should be a slow and progressive process. Begin with low-impact activities such as walking, swimming, or cross-training to maintain fitness without putting excessive stress on the treated area. Gradually increase the duration and intensity of these activities as your body adapts and discomfort remains minimal.
When ready to introduce running, start with short, slow jogs and incrementally build up your distance and pace. Listen closely to your body throughout this phase, stopping immediately if you experience any pain or discomfort. Incorporating proper warm-up routines before exercise and cool-down stretches afterward supports the healing process and prepares your muscles and joints for activity. Physical therapy often complements a cortisone injection, guiding you through a structured rehabilitation program that includes strengthening exercises and functional training to improve mobility and stability.
When to Consult Your Doctor
While cortisone shots are generally safe, be aware of signs that indicate a need for medical consultation. Contact your doctor if you observe any signs of infection at the injection site, such as increasing redness, swelling, warmth, or pus. Fever or chills accompanying these local symptoms warrants immediate medical attention.
Seek medical advice if you experience persistent or worsening pain that lasts more than 48 hours, or if there is no improvement in your symptoms after 10 days following the injection. New or unusual symptoms, or if the expected benefits of the shot do not materialize, should prompt a discussion with your healthcare provider.
For individuals with diabetes, monitor blood sugar levels closely, as cortisone can temporarily elevate them. Contact your doctor if you notice complications like increased thirst or frequent urination.