my hens have rattly chest and flu like symptons,what must i do?

[luvmyhens2bits]

my rooster came down very fast with a rattly/chesty thing and was very down,i got antibiotics and wormer from vet and he got better but not getting well,2 days later 2 ens have it 2,other hens are clear,need to get them well asap,advice please

 

[stargirl]

What antibiotics have you got?
Is your rooster & separated from the others?

I'd now be treating the whole flock, as it's likely to spread right through. An antibiotic added to the drinking water might be easiest. All need worming too, and the coop & run disinfecting.

It can take a few weeks for them to fully recover, so don't worry if progress is slow. You're on the right track!