My foxface recently got a mouth injury (within the past hour or so). It looks like it scraped its face along a rock while turning its head since the wound is worse on one side compared to the other. I want to say that just the outer skin got scraped off since it still has the same face shape just with none of the black scales it normally has. It behaves like normal, and it shows no signs of heavy breathing, but it seems to have some difficulty eating. It eats smallthings just fine, but it can't rip apart an algae sheet like it normally does. Is there anything I should look to do to treat this or should I just leave this alone and let it heal over time?