Pictures would be really helpful. Maybe in the morning you can find a dropping under a roost that has them and get one. Different worms sometimes require different medications. Usually the only ones visible are round worms or tape worms, unless there are maggots which are not actually worms and have an entirely different cause. Alternately you could search online for an image that is what you saw. Worms die once they leave the body regardless of whether they've been treated or not. Sometimes following treatment some will be expelled, but a bird carrying a heavy load will also expel some on occasion also. Wazine only works on large roundworms, so if you are dealing with tape worm it would not be effective. Tape worm usually resembles grains of rice (that move if fresh), but on occasion a large worm could be expelled, so best to know for sure which it is. Any possibility your vet will do a fecal for you to identify them?