Poor girl she may also be thin because maybe she is being bullied away from the feed/water . Mites can bring a bird down fast, as can worms. She may have both. DE does nothing. No wonder she is still suffering.
She needs proper treatment and some good food inside her to help her get through this. She may like boiled mashed eggs, plain yogurt, meat and vegetable scraps from dinner etc. You may benefit from some polyvisol infant drops to help build her up.
If the mites appear that large to you maybe she also has other parasites - ticks, etc. I would suspect others in the coop with her have them also. It's really good to know just what kind of worms /mites etc. has to be certain any medications will specifically remove that type. I hope she will be on the road to recovery soon.
She needs proper treatment and some good food inside her to help her get through this. She may like boiled mashed eggs, plain yogurt, meat and vegetable scraps from dinner etc. You may benefit from some polyvisol infant drops to help build her up.
If the mites appear that large to you maybe she also has other parasites - ticks, etc. I would suspect others in the coop with her have them also. It's really good to know just what kind of worms /mites etc. has to be certain any medications will specifically remove that type. I hope she will be on the road to recovery soon.