I just had two of my females to the vet on friday. They were displaying the same symptoms, the vet gave them Baytril injections. My gravid female seems a little better already. No mucus and the inflamation in her mouth has gone down significantly. The other female is still open mouth breathing and "blowing her nose". Hopefully after a few more injections she'll be doing better. Now I've heard two different thing. I've heard to lower the humidity and others have told me to raise the humidity. Which one is it?

As far as your snake, definately get him to the vet as soon as you can. It's well worth it not to lose him. Good luck and God bless.