Febrile Convulsion
A seizure which occurs in a child with a fever over 39°C (102.2°F). These most typically occur during the early stages of a viral infection, while the temperature is rapidly rising.

The convulsions occur because the electrical systems in the brain have not yet matured sufficiently to cope with the stress of a high temperature, and usually last up to 5 minutes.

After effects:
Following the seizure, the child falls into a deep sleep, and may be confused or irritable on awakening.

Contribution from Carlton Wade (O.D.P.)