I just got 4 pullets and after noticing brown, runny droppings, I had a stool sample test positive for giardia. The only local vet that treats chickens can't see them until next Wednesday, and I'm wondering if I can do anything for them before then. The vet won't prescribe anything without seeing them, and I'm so afraid my kids will get sick. Any experience in this area would be so appreciated. Thanks!