You may have some partial numbness in your buttocks and/or legs from the anesthetic after the injection. This may last several hours but you will be able to function safely if you take precautions. You will report your remaining pain (if any) and record the relief you experience over the next week in a pain diary.
You may notice an increase in your pain lasting for several days. This occurs after the numbing medicine wears off but before the cortisone has a chance to work. Ice will typically be more helpful than heat during this time. You may notice an improvement in your pain 3 to 5 days after the injection. Improvements will generally occur within 10 days after the injection.
On the day of the injection, you should not drive, and should rest and avoid any strenuous activities. You may take your regular medications at their usual times after the procedure including your pain medicine if needed. On the day after the procedure, you may return to your regular activities. When your pain was improved, start your regular exercise in moderation. Even if you are significantly improved, gradually increase your activities over 1 to 2 weeks to avoid recurrence of your pain.