Brunswick Police said witnesses reported seeing Connie Edmiston, 42, approach the other woman's car outside of Willetts Middle School after school Tuesday with her 13-year-old son in tow, and order the other woman to get out of the vehicle, The Medina (Ohio) Gazette reported Thursday.
The alleged victim rolled down the window and Edmiston reached in and repeatedly punched the other woman in the face, witnesses told police.
The alleged victim told investigators she had lectured Edmiston's son earlier in the school year when she saw him bully other students. Witnesses said Edmiston was yelling during the alleged attack about "calling her son a bully."
Police said the alleged victim was taken to Southwest General Hospital as a precaution because she suffers from multiple sclerosis and a blow to the head could prove fatal.
Edmiston was arrested shortly after the incident when she went to the police station to discuss the incident. She denied hitting the other woman and claimed the alleged victim had spit in her face.
Edmiston was charged with assault.