Unfortunately, there are no home treatments for RI. In the meantime, the best thing to do would be to raise your temperatures on both ends of the enclosure to help keep the RI stable until you seek a vet. An RI can get really bad in little or no time, so seeking a vet quickly would be the smart thing to do. Raising the temperatures will increase the snake's immune system, and help keep the RI stable from getting any worse, but this is only temporary.

I would definitely try getting to a vet as fast as you can because this RI can get really bad quickly, as I have stated before. I remember I made a thread like this a while back when my Kingsnake had RI, and in the end I ended up getting him treated by a vet.