i looked on some old post an people say to use this for colds i have a few qustions only one bird is coughing an wezzing should i treat all birds water or pull him out an just treat him.an he is 5-6 week old blue slate he has been weezing for a few days now he is coughing should is it safe to put him on this.we have just stoped putting corin after 5 day treatment could that have caused the weezing.