I rescued a two day old orphan chick from a flock that had signs of leg and face mites, several of the birds had gone blind from the whole of their faces being consumed by the parasites - or so it appeared. The flock was treated with Ivomec in the drinking water after individual dusting with DE had no effect. The birds seem to have stabilized. The flock is not mine. I pulled the chick two weeks ago and treated with Ivomec - 1 drop at nape of neck. Last week I noticed a dark crusty lesion at the side of it's mouth. I treated again with the Ivomec, this time putting the drop under the wing directly on the skin. In this past week the sores have overtaken the face and now I am thinking it might be pox and not face mite at all. The bird dusts regularly, is very spry, eats well and is active. Do the photos look like face mite or pox? What is the best care for the bird? Thanks so much.