Acne treatment procedure time and preparation before the consultation ㅠㅠ

I am looking into acne treatment and would like to know how long it takes from the consultation to the procedure. Does the treatment method vary depending on my current skin condition, the degree of inflammation, and the specific problem areas? I would also like to know if it is possible to have only a consultation on the first visit, and if additional time is required for preparation and aftercare if the procedure is performed on the same day. When scheduling, I would also like to know if I should only consider the time for the procedure, or if I need to allow extra time to account for the consultation and post-procedure guidance.
What information should someone preparing for their first visit be sure to bring? I would like to know if I need to disclose any cosmetics I am currently using, medications I am taking, or any treatments I have received in the past during the consultation. I am also curious if mentioning that I have sensitive skin in advance would be helpful. During the consultation, can I ask specific questions regarding cleansing, makeup, and daily precautions after the treatment? I would also like to know if separate soothing care or follow-up checks are necessary, even if the procedure is short. For those who have received acne treatment before, what did you check before your first consultation? Please share any advice regarding questions that beginners might easily overlook.