if a snake shows early symptoms of an RI can they be reversed by raising temps and humidity?

is it a must to take a snake with an RI to a vet or can it be cured by raising temps and humidity?

if one snake has it in your collection will the rest of your collection in the area contract it from the infected one?

if a bp is not in shed and you hear it whistle when it breathes that is probably an symptom of RI but if the snake just breaths loudly with no whistle that is not?

what is the best way to relieve RI symptoms while waiting fo a vet appointment?

these are just some questions i have because i have never had to deal with a respitory infection and i am getting conflicted opinions from hobbyists and even books.

correct information and personal experience would be great!

thanks guys!