Black sunglasses cheese

Does my daughter have toungue thrush? Link to photos? - thrush photos

My 2 years old tounue is in the middle of red, white and pink at the periphery it is?
I have no idea what thrush toungue is still unknown, locate points on the tongue and back. What is it? Is it dangerous? What is fever? Is not it dirty dishes and stuff?

http://s626.photobucket.com/albums/tt350/Tonguethrush/