Freckle Laser Cycle Inquiry

Hello, I'm a woman in my late 20s who's concerned about freckles. My skin is fairly fair, but I haven't used sunscreen since I was younger, so I have quite a few. I had a strong freckle laser treatment at another location a year ago, but the remaining freckles have come back a lot, so I think I need to get another treatment. What kind of machine does Maypure use for the treatment, and how long does it last? I have sensitive skin, so I'm hesitant to get treatments in short intervals like once a week. I'm also wondering if I can get the freckle laser treatment every month. Also, if you have any packages, that would be great! Thank you for your kind advice. Happy New Year :)