Our gander got a nasty cut on his foot, right at the ankle, and though he's stopped limping completely his wound hasn't been healing as well as we thought it might. We've been cleaning it out and putting neosporin on it, with bag balm over that, but it's hard to prevent him from walking or using the foot, especially now that he's stopped limping. Any advice? How long does it usually take these things to heal? I appreciate it! Thank you!