my hen has sour crop. She had a big squishy smelly crop. I gave her Nystatin and then the next day the crop only felt like it had liquid in it. I pushed on it and tilted her forward and it all came out and crop was empty. But now it is the same. She is drinking water but it’s like it just stays in her crop. If I pick her up it comes out. She is not eating and has lost a lot of weight. Should I keep giving Nystatin? Thanks for your help.