A Pontiac woman is facing child abuse charges after admitting to intentionally scalding her 1-year-old son in a bathtub because she was "frustrated with the child," the Oakland County Sheriff's Office announced Friday.On May 19, the day of the incident, Carmen Ann Smith-Portee first told investigators that she had run a bath for her son while he was in a separate room, and that he climbed into the scalding bath water himself while she had stepped away to gather cleaning supplies.