My three week old doe fawn has diarrhea that has progressively gotten worse. It started a few days ago with a runny orange color so I let her outside thinking that maybe some roughage would help. The next two feedings after that she has had watery green stool and this morning there was a bit of bright red blood in it. I just put her on Re-sorb, can you treat fawns with corrid? If so what dose is recommended?