in looking very closely at your pics I do notice some alarming things and I feel bad to bring these up. the ones who get these bumps show edema on their body which u can see in his front almost like they don't fit in their shell like way to puffy. also the right front foot is that a lesion there? I saw this exact same thing before nail/s fell off. I also think I see some other yellow spots besides the one on the neck. these are all related to this thing they have IF it is. even if u fully cure them they end up not growing or BARELY at all. one we had was 10+ months and never made it past 79 grams and ate like there was no tomm. just can't gain. those spots are HIGHLY contagious and one case we saw a healthy one contracted them almost 3 weeks AFTER they appeared cleared up fully so they remained contagious. as far as the jaw yes there is some exposed bone there. and the baytril by now will have worn off as far as it still working so more antibiotics may be needed. I HOPE for u they do make it but i only know of 2 that are still alive after those bumps and those two do not grow at all. im wondering are the additional yellow spots food possibly? on the inner right front leg and under the neck etc?