Worming and treating flock for respiratory disease at same time?

[stuckinthecity]

Can you worm your birds AND treat them for a respiratory disease all at once? My gut says no, but then that brings me to a second question. Do I treat for worms first or the respiratory issue? And what are the best medications I can get at a local feed store to treat worms/respiratory infections?

 

[Judy]

Which respiratory disease are you treating with what?

 

[stuckinthecity]

I don't know what they have, and I haven't gotten anything yet because I've never had any problems like this.