We wormed our flock with Valbazen this summer, the second dose occurred around August 1st. This morning, I found droppings with 3 worms, that I believe are round worms after looking at photos. I guess I need to treat them again. My question: will treating them with Safeguard be likely to result in toxic worm overload? The Valbazen I used was borrowed from a friend. I can get Safeguard locally, which will let me start treatment right away. Does this worm overload happen frequently? Only one pile of droppings on the poop board this morning had worms, but I don't know which hen and plan to treat them all. Also, they are molting. Does that matter? I don't know which is harder on their system, having worms, or the wormer. I appreciate any advice!