have any tips as far as the chickens are concerned, but if you take colloidal silver in an eye dropper and in a nasal sprayer, you'll most likely kill whatever is causing a reaction. You can buy it at most health food stores.
Colloidal silver kills over 650 different strains of virus, bacteria, and fungus. It doesn't burn or sting. That's why the medical industrial complex wants to shut it down, because they want you buying antibiotics @ 250 bucks a pop.
I have a friend that thanks me roughly every couple of months because he no longer gets sinus infections that lead to getting sicker.