I have a scar on my left chin. It started off as a hypertrophic scar due to a fall, but with multiple Kenalog injections (6-7 sittings) and fractional CO2 (2 sittings), it is now much flatter. But there is hyperpigmentation and hypopigmentation (one patch each) which makes the appearance very bad. I have been using Hexilak Silicone gel regularly before sleep (one thin coat) and sunscreen for going out for 3 months now. The pigmentation hasn't improved at all, so please suggest a better approach!