White patch on chin after filler - should I be worried? (Photos)

Hi, I had filler in my chin in about Nov last year I was overfilled and had to get it dissolved but it wouldn’t dissolve it properly for me and kept telling me it was ok. Some of it was dissolved but not all. I then started to notice a white patch on my skin that doesn’t return to pink quickly when pressed. I recently got another practitioner to dissolve it and it mostly worked but I still have the white patch should I be worried? It’s almost a year!