Is it necessary to treat oily skin first before treating acne scars?

Hi, Realistically, 25-50% improvement will be achievable with combination acne scar therapy (these include subcision, scar revision, fractional CO2 lasering, fractional microneedle RF and fractional picosecond lasering) for moderately severe acne. Generally, after treatment, scars will still be present but will look less obvious, less deep and less craggy. Complete removal of acne scars is not possible even with repeated treatments and with the “best” treatments. Hope this helps!

1)acne scar with crater, firstly, need to assess if the skin has healed well before a gentle subcision of the the crater scar. This is followed by a resurfacing, best by a fractional resurfacing laser. Otherwise a spot chemical peel will do well too. often multiple sessions will be needed for both laser and chemical peels. 2)pigmentation it can be many types of pigmentation, from freckles to Post-inflammatory pigmentation(PIH) to moles. pigment laser work well for freckles, but there is down time for 3-5days. PIH can be treated with nonablative laser and creams.