I cant even begin to address all of the ways that the above quoted post is wrong.
DO NOT LISTEN TO THE CONTENT OF THE ABOVE QUOTED POST.
There are antibiotics given (either orally or injected) for RI and other bacterial infections.
BAD advice like the previous post is why I suggest to you, and now urge you, to find your way to a vet. You could even begin by calling a vet. Please.