I have a biggg problem. One of my chicks has been getting ticks on his face, and it's really a pain holding him still (he's really skittish) and another one of my cockerels has on right on his bottom eyelid, and it looks like he's been trying to get it out. Its all swollen around his eye. Does anyone have a chicken safe idea on how I could prevent more ticks from getting on them? Could I use a flea and tick shampoo or is that poisonous for chickens?