You can't treat a RI. You need antibiotics. Check his mouth though. If You're skittish simply check his teeth by moving his jaw GENTLY...if you see bubbles he has a RI. If not but you hear a poping or a whistle raw him to a vet and have him looked out. Trust me... don't wait till it's to late. Our paste Isilsur has one, and has for 3 months.. if your snake does make sure you get a fecal sown before admistring antibiotics as well.. my reply isn't much help but you'll get many others that are better explained.