Would this scar be amenable to subcision and filler? This was not caused by acne, but caused by a super dry patch (derm said it was granuloma annulare), that would just not heal. I have tried microneedling and a Venus Viva NANO RF treatment. No results whatsoever. I had a consult and she suggested subcision with Restylane. Is it safe to perform subcision in this area? Any other tips? I need this improved!