I have a niece that is 1 year old, she has had a rash for the past month, it comes and goes. The rash starts out as a red bump under the skin and then presents itself with a hard raised bump similar to a chicken pox, she has a low grade fever, fatigue, and is very miserable. We have been to the doctor but no one can figure it out. I am a nurse and I have never seen anything like it. The fever is what concerns me low grade but its there, any suggestions?