Bosemani Rainbow....disease?

My tank recently got attacked by a bad case of Ich. Lost a few fish, but it was treated and now under control and gone. I have two Bosemani Rainbows. One has what you may see in the picture, which is like white fuzzy spots. Looks like by one or two the scales are raised in that area. Had Ich also, but gone. Seems to be moving and eating normal. Any ideas and treatments?

The treatment I used was supposed to treat for this too...I have no idea what it is.