I have 1 hen out of my flock of 4 that runs away whenever I try to get close to her and she refuses to eat anything but feed. This has started to become a problem because they had worms and she wasn’t able to receive treatment like others. They all started laying shell-less eggs and I gave them some calcium pills and the other 3 got better but not those one because she didn’t take it. Overall how do you think I could start getting her used to me and how could I give her the worm medicine and calcium.