Reading several feeds regarding the use of Valbazen. I tried Wazine several weeks ago and just saw more round worms this morning in one hen. I'll try Wazine again tomorrow in the waterer. Should I try Valbazen 10 days following the Wazine. And if so do I purchase "VALBAZEN SUSP 500ML" Having difficulty finding a smaller bottle. I believe this one hen who is a rescue chicken has a lot of worms. She passed them several weeks ago and as I said did again this morning. Can anyone offer the safesty advice possible for her. She is an Easter Egger. thanks!