This once-common rash isn't seen as much in today's kids thanks to the chickenpox vaccine. Itâs very contagious, spreads easily, and leaves an itchy rash and red spots or blisters all over the body. The spots go through stages. They blister, burst, dry, and crust over.
Boo (real name Mary Gibbs) is the tritagonist of Monsters, Inc. She is Sulley's human best friend. In the first film, Boo is a 2-year-old human child who has escaped from her room from which Randall intended to kidnap her. Much of the film's plot follows what happens as Sulley and Mike try to get Boo back to safety.
Sulley nicknamed her Boo, but her actual name is Mary (seen briefly in a picture in the film). The picture with 'Mary' was actually drawn by Mary Gibbs, the actor who played Boo and was incorporated into the film. Boo's actual name may well be Mary though. The Internet Movie Database only lists the character as Boo.