One of my Chinchillas last week managed to injure herself, I'm not certain how but I think she managed to prick herself on something as she suddenly had a sore bare spot on her shoulder with a tiny red dot in the middle. I left it at first then noticed it felt like a squishy blob beneath the skin. I put Surolan on it for a couple of nights and now it feels much smaller but she's got this pink bald patch about the size of a 50 pence piece, with so far no sign of new fur growth and I'm wondering if that's normal. The bare skin feels quite hot to touch but nothing is oozing or leaking and it doesn't appear to be bothering her as she's eating, drinking, running and leaping around as normal. Should I just leave it and see if the hair starts growing again? Is it safe to put a bit of Sudocrem on the skin instead?