scaley leg mites

[kb55]

Hi everyone I'm new to keeping chickens I have 3 hens which I purchased from a local pet store I've had them about a month I noticed 1 always had dirty legs on inspection i have found it has scaley leg mites I have bought a leg mite treatment will I have to treat the other 2 hens ? And 1 of the others has started laying can I still eat the eggs or will the treatment affect them ?

 

[garp94]

what does the package say the active ingredient to kill the mites is????

 

[kb55]

Sorry I'm currently in work so unable to check it was made by johnsons and forbscaly leg and beak that's the only info I can provde until tomorrow I've since been reading up on it and a lot of people are using olive oil which I assume will be a lot safer