You purchase wazine at the feed store and it has the instructions on the bottle or the feed store can help you as well. Please don't ever feel embarassed because your chickens get worms, the worms are in the ground and there is nothing you can do about it it's just another natural process raising your own chickens. The de-wormers only get rid of the adult worms but not the eggs, you should keep doing the de-wormer at regular times througout the year. You can eat the eggs too but make sure you crack them into a bowl or candle them to make sure there isn't any worms in them because the round worms do get into the eggs.
You will learn a lot from here to come back everyday or weekly and read the forums.

You will learn a lot from here to come back everyday or weekly and read the forums.