My son has cirrhosis and hep c . Currently he is sick with flu like symptoms--chills, fever, aches and pains. He has a huge blotchy area on his back at base of spine and into beginning of crease of buttocks. The center area is almost blood red to purple, but it is a lot like hives in the outer region. He was an iv drug user in the past, has been diagnosed as stage four, but only via ultrasound, not biopsy. Can this rash and illness indicate worsening of his disease? Could it be a simple case of the flu? What do you make of the blot hipness?