check her REAL good for stick-tight lice...these are known to be around the face and are difficult to get rid of.... If you can get to a vet do so...this can get bad fast.
Did she have a recent respiratory illness? If not it migh be due to mites... can you get to a vet?
Try posting on Peter Browns forum from First STate Vet Supply... ( wwwfeatherfanciers.com) He can also provide you with the meds you will need.