How are basic care and additional optional items distinguished regarding acne treatment costs?

Hello. I am a 35-year-old woman concerned about both acne and enlarged pores. I am writing to inquire because, when looking into acne treatment costs, I would like to first check what items are included rather than comparing the price of a single procedure. I have not yet decided on a specific procedure or received any treatment; I intend to create a plan tailored to my skin condition after a consultation.

I would like to know if the initial quoted price includes a consultation, skin check, extraction, and soothing care, or if there are separate items available depending on my condition. If I am considering pore care along with acne treatment, could you explain the distinction between necessary and optional treatments? Rather than deciding on everything at once, I would like to know what I should prioritize right now.

I would also like to ask how the cost calculation differs depending on whether I book multiple sessions from the start or decide on the next treatment after monitoring progress. I understand that it is difficult to determine the outcome based solely on a fixed number of sessions, so I would like to confirm in advance if any additional charges arise when changing the plan midway. What questions should I prepare to set a realistic total budget during the acne treatment consultation? Please provide guidance by dividing the items into included and optional add-ons.