My chick is very sick. She is about 5 weeks old . She was very weak and had a runny nose last night. Today the other chicks ran by and she fell over. I checked her over, she has mites, and pasty butt. I washed it off with warm water, and powdered her with mite stuff. Also going to be powdering the rest of my flock. We put her in a crate in my bathroom and gave her plenty of food and water, and added electrolytes. Her poop is white and very watery. If there anything else I can do???