The sooner the parent and teacher realise that, the better the student is ready to meet it with confidence and fortitude.
There are no anxious students. There are anxious adults.
Students must use exams to reflect on their learning.
Parents, on the other hand, should be there to listen to the story, negate fears, wipe-off tears, if any, and encourage.
Lack of parental anxiety is the best antidote for student anxiety or exam fever.