Can anyone comment on their experience doing doxycycline injections for festoons?

I'd like to try this noninvasive tx. I have cheek festoons that are on the milder side. I've tried RF microneedling, filler, fat transfer. Nothing really helped much. I'm thinking about doing CO2 laser, but I'm hesitant as even though I'm a Fitz III, I already have some melasma and hyperpigmentation. Doxy injections would be so low risk. Would I look for a dermatologist or a plastic surgeon and does anyone have any experience with this?