Is it safe to use Permethrin prozap garden and poltry dust on my girl?

[duckduckchicken]

Need to dust my girls for mites is this safe and how long before I can eat the eggs?

 

[Elite Silkies]

That's what I use and it's works really good.

 

[SundownWaterfowl]

There is also a liquid permethrin. Thats what I use. I make up a batch in a weed sprayer, and go in the coop at night and spray down the birds. I find it easier than dusting. This is what I use http://www.tractorsupply.com/insecticides/permethrin-10-livestock-amp-premise-spray-32-oz--2212611