What can I do for redness and atrophic scars after completing a course of Accutane (photo)?

Looking at your photos, my suggestions for you are:

Treatment with injectable Rejuran S. Rejuran S is a Korean salmon Polynucleotide which is hypoallergenic, with excellent reparative, regenerative and anti-inflammatory, anti-redness effect on post acne scars and redness.

It helps to improve and lift your depressed acne scars through the stimulation of collagen cell repair and regeneration. It's anti-inflammatory effect aids in the reduction of post acne redness and inflammation. You will need at least 4 treatment sessions, performed one month apart.

Treatments will result in progressively smoother skin with scar lifting, even-colored skin, improved hydration and elasticity.

No downtime laser toning can complement the above treatment to improve
the redness on your face.

Warmest regards
Dr Lim Luping

You should definitely add differin to your regime and consider starting laser early.

I will suggest a combination of vascular laser (Excel V) and Picosure Focus array lens or Fractional laser. Hopefully the atrophic scars can be improved to a good extent since the scars are still new!

Best regards
Dr Yanni