I'm glad you think they are getting better and I wish the best of luck! Like what was stated before, you can never give or sell them because they will always carry whatever it is that has infected them. I would also keep the medicine that you are giving them on hand at all times because it does tend to rear its head and come out again in times of stress for the bird. Also, if one has it then all your others will get it as well so make sure to dose all of them. If the medicine doesn't work, Tylan works wonders. I've been fighting a sever respiratory infection in my flock and it has saved many of them. I was recommended 1/4 cc for bantams and 1/2 cc for regular size chickens for 5-7 days. Make sure to get Tylan 50 if you do because the other Tylans are too strong for that dosage. It is injectable but you can give it orally. I prefer to so I know I don't mess up the shot and inject too deeply. Good luck and I hope they get better. Poor babies.