How can I treat this red / pink patch after Subcision + CO2 Laser? (Photo)

Hello, Before more than 2 months I had acne scars treatment - Subscision + CO2 Laser + Filler. Everything healed fine but one thing is bothering me. On the right cheek developed red or pink patch and I have had here for two months. Can you please give me advice what it is and how can I treat it? Or it will fade out on its own? Thank you.