Recently I bought 6 silkie chicks. I get them home & find 3 are sick. By morning 2 were gone. Leaving me 4 chicks. By that afternoon I saw the one chick blowing green snot bubbles out her nose. She was very lethargic, & only drinking. She's now 7 weeks old and outside with the flock Now a week and a half ago I got 3 polish chicks. They also had green snot bubble coming out their noses. They now are all better. So here is what I did for them. 1. I got them sun bulbs. Instead of a regular light bulb I used a bulb that put off uv rays for growing plants. 2. Every morning I mixed into a pint size mason jar fresh water with 1 tablespoon Duramycin & 1/4 teaspoon of save a chick electrolytes. 3. On warm days when the outdoor temp. was at least 90 I put them outside for a few hours with their water. ALL my chicks are well & running around like the lil bosses they are! I hope this helps someone!