Alright, so I found out about 2 weeks ago my snake had a respitory infection. He was making the popping, congested noises day and night. So I took him to the vet to have it checked and get him on some antibiotics. I found out my whole tank and system was flawed. I've had the snake for 12 years and I always used a heating lamp and a rock to maintain heat in his cage. But the vet told me To switch to a ceramic lamp and a UTH. So I did just that. His tank maintains a heat around 80-90 degrees all day. The humidity levels are right for a ball python, normally around 50-60. I just decided to take the antibiotics they offered. It's ceftazidime. I give him 200mg every 72 hours. After the first 3 he was doing wonderfully. But after the last two....he started the open mouthed breathing again. And it's come back with a vengeance. And during this time I've fed him 4 times because the vet said he was under weight and he's in the process of shedding. He's been having a hard time with it so I've been trying to help while he soaks. I've also been soaking him twice a day. I'm just at a loss because I've done everything by the book since his visit and am not sure why the progress was lost. I'm taking him to the vet tomorrow to get a culture done and see if it's the antibiotics....is there any advice?