how long post cortisone injection prior to activity
First, understand cortisone injections are an attempt to break the pain/inflammatory cycle associated with an injury. Once the pain cycle is broken, exercise is used to strengthen and stabilize the area. Wait at least 24 hours before beginning any exercise after cortisone injection. The injection itself may cause pain. If the client has pain beyond the 24 hour period, wait until the pain from the injection has completely subsided before beginning exercise.