A 13-year-old girl suddenly fainted in a supermarket, sweating all over her body, her eyes rolled up, and she lost consciousness. After examination, her blood pressure was 103/58, blood sugar was 6.86, and EEG showed mild abnormalities. What kind of disease is this, and how should she seek medical attention?

Explore the relationship between post-infectious encephalitis and cerebral palsy, as well as corresponding treatment and rehabilitation recommendations.