How many sessions do I usually need to maintain the effects of an acne treatment?

I'm worried because I heard that acne treatment isn't a one-time thing but requires multiple sessions.

I'm wondering how often I need to get treatments to maintain the effects of the acne procedure!!

I am worried that receiving acne treatments too frequently might be a burden on my skin, so I would like to know what the appropriate interval is. I am also curious about how many sessions it takes to see noticeable changes.

It would be helpful for me to make a decision if those of you who have received it consistently could share your actual experiences!!