The healing process for a rook piercing typically takes around 6 to 12 months. During this time, clients should adhere to proper aftercare practices, including cleaning the piercing with saline solution or a mild soap solution twice daily. It's important to avoid trauma to the piercing, such as sleeping on the pierced ear or playing with the jewelry, to promote a smooth healing process. While some initial swelling, redness, and tenderness are normal, any signs of infection, such as persistent pain, excessive swelling, or unusual discharge, should be promptly addressed with a piercer or healthcare professional.