How long does the multi-Botox procedure take, and how long is the waiting time?

I am planning to schedule an appointment to receive Botox injections for three areas simultaneously: the forehead, between the eyebrows, and around the eyes. I would like to know how long the total Botox procedure takes if multiple areas are treated at once.

I would like to know if it takes significantly longer than when getting an injection in just one area, or if the injection itself finishes relatively quickly. It would be a great help in adjusting my work schedule if you could provide a complete timeline, including the time to register and apply numbing cream on the day of the visit. I am also curious if there is a separate expedited process available for busy professionals to get Botox injections quickly.

I am asking because I would like to use my time efficiently, so I would appreciate a detailed response. I will confirm the Botox appointment immediately after verification.