I had to treat my flock (14 hens) after they got worms. Their egg laying had slowed down and this past week I started treating with Safeguard. Since I am treating all 15 hens I am adding it to a gallon of fresh water, every day for 5 days per the local vet. Once they are dewormed/treated how long should I expect it to take for their egg laying to pick back up?