I have a skin rash, fever and flu symptoms, is it the flu or something else?

I have fever of 99 – 101 and it changes throughout the day, body aches, severe headache over and around the eyes, feel tired and my back shoulders and back hurt. Feels like the flu – had it last year and turned out to be the flu. But after 5 days of these symptoms now found red skin rashes on my left leg this morning. Here is a photo for you. Not sure it is the flu now. Can it be some other disease? Your opinion would be highly appreciated.

Age: 47
Medications: Advil