One chicken died, now two coughing, PLEASE HELP!

[mg15]

Mehjr10

Hi,
do you worm on a regular time frame ?
If so how often ?
and you use the Valbezen or the Zimectrin Gold ?
Thanks.
mg

 

[Mehjr10]

I use the Valbezan, worm twice year spring and fall, you have to do the followup dose 7 -10 days after the first dose.