My skin is on the sensitive side; is it possible to treat blemishes?

Hello. I am writing to inquire because small pigmentation spots are gradually appearing on my face, and lately, my skin feels like it is looking messy overall. My skin is generally sensitive, so it tends to turn red easily when using new cosmetics or when irritated. I am wondering if it is possible to receive pigmentation treatment for skin like this. I would also like to know if the intensity or method of blemish treatment at the clinic is adjusted based on skin type or current condition. I am also curious if there is a separate skin diagnosis or consultation process before starting treatment. Additionally, I would appreciate it if you could let me know if there are any specific precautions I need to take in my daily life after receiving treatment. I am particularly concerned about red marks or peeling remaining for a long time after the procedure due to my job, so explaining the recovery period and when I can return to my daily routine would be very helpful for the consultation.