Acne scar revision is a specialised field. For the best results, one should target the acne scar type with ideal treatments. The web reference below will take you to a resource. I embedded all the videos in one page to help. Its not about laser or miconeedling, its all about what is the best...
If you are still seeing positive results from your microneedling, by all means, keep going!
Microneedling has been safely used in a wide variety of patient-types including patients of all skin-types. We recommend your treatments be 4 weeks a part.
Realistically if you have receive a small amount of UV it will not affect your microneedling PRP procedure 3 days after. However because your skin pigment cells maybe 'active' after trauma, prolonged exposure is not recommended, especially if energy based microneedling was used. Follow the...