Loss of balance is the symptom, which shows that Rachel's illness is associated with her ear.
An infection of the middle ear also known as acute otitis media.
The condition is more common in children than in adults.
The infection of ear generally gets treated by its own, thus, the treatment may begin with monitoring the problem and managing the pain.
Some of the common signs of ear infection are pain in ear, mainly when lying down, loss of appetite, loss of balance, fever, fussiness, trouble in sleeping, and headache.
Thus, loss of balance is one of the symptom of ear infection.
Find out more information about ear infection here:
https://brainly.com/question/17171326
