Vaccines and "unexplainable" fever

A few years ago a relative got high fever for an entire week. Suddenly it flatted out. The doctors at the infection clinic didn't find anything. Previous to this, about 2-6 weeks (can't remember) my relative got a few vaccines (to travel abroad). For a period of 5 days now, the same relative have had high fever and really no other symptoms other then slightly less hearing on one ear and a "strange feeling in the mouth". A few weeks ago (around 6), he got a flu vaccine.

Any ideas? Could it be the shots?

I'm updating and hoping someone can help.

My relative is now back at home after one week @ hospital. They couldn't find anything even though the blood samples indicated some kind of inflectional activity. "Probably the flu", the doctors at the hospital concluded.

The body temperature is now at regular levels again. He is slowly returning to "normal". However, one side effect is still there even though it has gotten some what ever, rashes all around the body. For this, they gave him cortisone. In addition, something odd has happened. He skin, mostly on his fingers and between his toes, is comes off easily, I've taken a picture and here it is:



Why is the skin coming off and should he just wait it out or is it time to act?

I'm thinking scarlatina here, perhaps colloidal silver would help to knock it out.