It is good to hear you have had some response to the treatments you have received so far.
Most scientific studies on TCA cross recommend treatment at 2-weekly intervals for 4-8 sittings, with follow up at the 3rd and 6th month.
I would suggest you return to your doctor who performed the treatment for you as he/she would be best to advise on whether you need continued treatment or any change in treatment regime/technique. In addition, the other atrophic scars (rolling, box car) on the cheeks may be targeted using a combination of scar treatment modalities in addition to TCA cross.
I would highly recommend a combination approach for best results. Do consider energy based devices such as lasers and RF, subcision and fillers as well.
Regards,
Dr. Joanna Chan
