Sweet pea is the boss of the group, and chases others away from treats. I have vetRx on hand (didn't take care of the scaly leg mites) but I'll try it. Do you drop it into the nares or just nearby? Also will try to get it into her mouth, but I live alone and am not confident of my ability to restrain her, get her in the right position, and treat. I'll add the cod liver oil. layer mash is 16%, but I do give them yogurt/cottage cheese once a week or so. She gets the biggest share. I was boosting the chicks with sunflower seed chips because of a feather picking problem with a bully chick, and I can keep doing that to get more protein. I can start giving her scrambled eggs, too. And I will look to see if there are higher protein layer feeds around here. Oyster shell is crushed, and free fed. I'll add some of the oyster "flour" into the yougurt so she gets it . I give my cats tumeric, so no problem to add to the chickens, and I'll try the cayenne. Keeping her calm - well, I got rid of one rooster, but I've noticed she does get occasionally chased by the remaining rooster. I've been thinking about rehoming him since one of the chicks is a barred rock rooster, and I'ld rather have chicks from him than this rooster who is featherfooted. So that would help. She was stressed by the chicks sharing the coop, which started a few months ago, but is resigned to it now. I sure stressed her this morning with the dusting! and that WAS some heavy handling - I've avoided handling her much in the past because it increases her heavy breathing,which probably made this morning all the more traumatic. I'm picking up the wazine tomorrow - I just like the idea of the gentler worming first, especially with her poor health. I can't tell you how much I appreciate you taking the time to give such thorough advice. Will keep everyone updated on progress.