Maybe, but high humidity also makes it easier for bacteria to thrive. However, I do not believe that humidity has an effect on breathing. You can breathe no matter what humidity level there is outside. (I actually find high humidity more annoying when I breathe than low humidity.) I'm going to use Anthony Caponetto's carpet pythons as an example here. Carpet pythons live in a relatively high humidity environment. Anthony keeps his pythons at lower humidity levels and bacterial growth usually does not occur and his animals are very healthy. His animals seem to do fine with low humidity.
Humidity is only applied by herp-keepers to keep their animals from drying out. Frogs have very sensitive skin and need a lot of humidity to keep hydrated. They can dry out if humidity gets too low. The ball python has low humidity requirements and as long as it has water to drink, it will not dehydrate (unless it has parasites, which is another story
) Anyway, what I'm trying to say is that I think low humidity would be best for this python to help clear up its infection and I don't think that it will make it hard for him to breathe.
Man that was long
