Is there anything I should do or not do after the treatment?

You are free to continue with normal routines after the treatment; some clients feel a bit sleepy or “spacey” after the treatment, and plan their activities accordingly.  You can train at the gym afterwards.  However, sometimes it’s recommended to discontinue exercise for a day or two to let the treatment take proper effect.  This is especially pertinent if the activity/training is what is causing the injury.  Some level of rest is usually beneficial after the treatment session, but not mandatory.