15yr old, feels like she is "coming down with something", tired, showed me the rash last night. i have photos, she is up to date on all vaccinations.

No data to work with: This is the public HT site where we only get to see what you write. No pictures, x-rays or other uploads are made available to our review. Your description is too vague to allow a focused response to a probable cause. You are welcome to start over with a better description of the rash, when and what other symptoms are present. Your posts are not liked so each must have all data.