Overcorrection with kenalog on facial scar: how long might atrophy last? (Photo)

Hi, I have a scar on the side of my nose from mohs surgery. It's been treated with monthly kenalog injections for 5 months. The scar looks good but the area around it has atrophied, resulting in a shadow on my face. Pic shows it in its worst light. Would really appreciate advice about how long atrophy might last and if filler is an option. Also if you could please be gentle in your reply I'd be so grateful--been through alot with the skin cancer and also body dysmorphic disorder. Many thanks :)