Well, now we have that out of the way.
The problem that you were treating could have brought him down and let some underlaying problem manifest itself. It could be respiratory, worms, or lice, I would run a fecal exam to rule out a few possibilities.
He could have face lice, a smaller version of the normal body lice that live in and around the ears. They can be seen drinking from the eye in this pic. Treatment is Ivermec pour on, 0.40ml divided up between the shoulders on the skin, under the wings and a tiny drop on the back of the crest, again on the skin. Body lice can also bring a bird down if not addressed.
The problem that you were treating could have brought him down and let some underlaying problem manifest itself. It could be respiratory, worms, or lice, I would run a fecal exam to rule out a few possibilities.
He could have face lice, a smaller version of the normal body lice that live in and around the ears. They can be seen drinking from the eye in this pic. Treatment is Ivermec pour on, 0.40ml divided up between the shoulders on the skin, under the wings and a tiny drop on the back of the crest, again on the skin. Body lice can also bring a bird down if not addressed.