Please be aware that these signs can show up to 24 hours after the original injury.
On the first signs of:
Unusual drowsiness or failure to recognise surroundings
Abnormal or change in behaviour in children
Actual unconsciousness
Persistent or severe headache
Repeated vomiting
Loss of use or weakness arms/leg/face
Blurred vision or seeing double
Persistent discharge from the nose/eyes/ears
seek medical advice from a doctor