Use Safeguard. Heres a link for the dosage. Repeat in 10 days, egg withdrawal is thought to be 14 days after the last dosage. Do all your birds. :)
https://www.backyardchickens.com/t/812128/worming-with-horse-wormer
Mites and lice will suck the life out of the birds as will worms. Thats why in your other thread we suggested Safeguard. It is fenbendazole. Here a link on all worms they can get. Wazine only treats roundworm. Don't wait to treat him for worms...