how to kill wormsI recently purchased a 9 month old Salmon Faverolles pullet. She would stand around, all fluffed up and she had a very pale comb - and she didn't weigh anything, just a ball of fluff. At first, I thought she was beginning a molt, but I decided to worm her just in case (I used Valbazen).... I think it's working. She's more active now and the color appears to be returning to her comb. I'm waiting for her to come back into lay.
Go to your local feed store and tell them your chickens have coccidiosis (worms), they will point you to the worming medications.
Read and follow the instructions on the bottle.
Feed your chickens medicated food, I know we all want non medicated feed but this year coccidiosis has been very bad, mild winter lots of rain so they are in full swing.
Depending on how bad the worms were you may have to wait a few days and repeat the worming medicine again.
Your other choice is to do nothing and hope they can get through it on their own and that they build up a tolerance to it.....