I have severe acne and horrible scars. i tried isotretroin but it did not help. can you please suggest some way?

Multimodal treatment: Find a local plastic surgeon or dermatologist who uses a combination of techniques. This may include any or all of tumescent anesthesia (to numb the skin), subcision (a process of undermining and loosening adhesions beneath the scars using a micro dissector), tca chemical peels, horizontal resurfacing to remove scar ridges, and ablative fractional laser treatments.

Complex disease: Acne is a very complex disease entity and you may want to see a specialist for treatment which away require trials of different medication regimens and skin care products.