Does she appear to be molting with any feather loss from the tail, neck, chest, or elsewhere? Some chickens molt so gradually that you don’t notice except for the tail feathers, while many lose lots of feathers at once. Molting is a common time for one to become ill.
Since you want to throw everything at her because she is special to you, I would go ahead and worm her with 1.25 ml of the fenbendazole if she is close to 5 pounds. Repeat it daily for 5 days which will get all types of worms except tapeworms. The vitamins and probiotic would be good to use.
What is your location? You can get some antibiotics online but it takes time for shipping. Wash off her bottom with warm water, and make sure there are no maggots present. Offer her some chilled coconut oil cut into small pieces to peck. Is the crop firm, doughy, or puffy? If firm or doughy, massage it several times a day. Try to get her drinking water.
Since you want to throw everything at her because she is special to you, I would go ahead and worm her with 1.25 ml of the fenbendazole if she is close to 5 pounds. Repeat it daily for 5 days which will get all types of worms except tapeworms. The vitamins and probiotic would be good to use.
What is your location? You can get some antibiotics online but it takes time for shipping. Wash off her bottom with warm water, and make sure there are no maggots present. Offer her some chilled coconut oil cut into small pieces to peck. Is the crop firm, doughy, or puffy? If firm or doughy, massage it several times a day. Try to get her drinking water.