Advertisement Hey Everyone. My boyfriend and I acquired a Tiger Salamander (Ambystoma tigrinum) about five months ago. His name is Salami and he was a happy squish up until recently. We both noticed a sore on his back about a month ago. It was small and didn't seem extremely irritated so we left it alone for a few days. One morning after slamming down a few super worms we checked his back again. It was so much worse than it was just the day before. We immediately started researching what this could be and could come to no clear answers. We treated it with Equate Anti Bacterial ointment immediately and saw that it helped it shrink a little. We continuously used the anti bacterial ointment because it seemed to have been working, but when we checked on him today the hole was much bigger and is at its worst. We have been housing him in a giant tub with great ventilation since we first got him. (5 months ago.) We keep his substrate moist, but never damp so that he can burrow. We only use purified water in his swimming dish. We redid his entire enclosure as soon as we noticed the hole. He is also a great eater and has never turned down a meal... If you have any information as to what this could be, please let me know. Also, let me emphasize again that it got extremely worse very quickly. The hole was noticeably larger in about 8 hours.