RIR about 1.5 years old, was exhibiting Cocci symptoms of being puffed up, hunched over, and eyes squinting with pain as well as a poopy vent that looked really raw as she has been laying very very bloody eggs (on shells). So, I treated all 12 with Corid 1 tsp per gallon for 5 days and she seemed back to perfect health. But then again this weekend she was puffed up, hunched over and in pain again still with a raw poopy vent. Do I re-treat with Corid or is it time to go to the vet? Thanks for any and all suggestions...