Armando Perez was only three-months-old when he got itchy. His mom, Alexandra Perez, says it wasn't the normal scratching that could be fixed with a cute pair of baby mittens. It was so bad that there were blood stains on his bed sheets and scabs on his little arms and legs. The Perez family, who live in Edmonton, soon found out he had Progressive Familial Intraheptic Cholestasis (PFIC) — a rare genetic liver disease that affects one in every 50,000 to 100,000 children born around the world.