Minimum a year to 18 months. Let the area heal completely so you can see the final result, then try the next area. You do not want any shock from saline or injections early on. It will also help you gauge where your loss is headed so you can better prepare. Anything to avoid being in Repair situation is ideal. Im a repair patient looking to get ethically repaired at the moment. It is not easy so better to play safe as this deals with your face/head. Best of luck to you