hens coughing

[m.hubbard]

hi all hope someone can help we five new birds from two diffrent breeders and the first two weeks thay all seem to have a cold
with sloppy poo running nose and a cough .

we bought some active silver spray and treated them twice a day for 2 weeks and it all seemed good untilll the other day one of the birds started coughing.

now all the birds are starting again and some of them have sloppy poo

is there some thing stronger i could give them ?

breeds
white leghorn
isa
2 blue bell
speckled star witch after spending money on an incubator has gone broodie ,


cheers m