Have you been doing any cleansing lately? I know I sometimes get a very red face particularly and definately a burning sensation in the skin when I am either beginning to move toxic stuff around in my organs, or when I am releasing toxins. To be honest the first time it happened I was quite pleased with my rosy complexion, and the healer I was working with said, "don't worry, it will go away"!
I think I experience this mostly in areas where the skin is thinner. The head cold could be a form of cleansing as well.
Just a thought. I would change soap and just observe it for a bit.