The joys of chicken keeping indeed. It makes one wonder if some people have the same species from some of the posts.

Get them once they've gone to roost is what I do with those who don't like being touched.
https://en.wikipedia.org/wiki/CalendulaYou should be able to buy a cream or even an essential oil type product at a chemist, or a alternative foods/cosmetics/whatever type store.
It's not a vet product and doesn't fall under the drugs list.
Chickens are inclined to be a bit dramatic. I've watched them get hierarchy type pecks that haven't even disturbed their feathers and with some of the pullets in particular one would think they're being murdered. Once you've got one in your hands and they've decided that your not a mad axe murderer, most become a lot calmer. Confidence is the key. They know if your nervous and take full advantage.

 Slow and easy works best. Hands kept as low as poossible when apraoching a bird, no sudden movements and once you've got them contained (in a room for example, leave them standing on their feet while you apply the cream. It's often being taken off the ground they object to most. I have one in particular here who will just not be carried on my palm in the grip I use. As soon as she's got her feet on my palm she's much better and if I'm not wearing anything too slippery she'll climb up my arm and sit on my shoulder and stay there.