Can the progression of Poikilodermia of Civatte be stopped?

I am a male, 39 years old with skin type 1, whom have POC on neck for the last 3 years. Can the progression of POC be stoped?? And if so, what is needed to be done to stop this progression stoped? i already protect my skin with high factory phyiscal sunscreen, and i try to avoid direct sun at peak hours.

No doctor answers yet