Since you have not mentioned any other symptoms,I assume she has fever ONLY.
Most fevers are viral in origin in this age.
Just give plain paracetamol(meftal not needed),repeat every 4 hours if needed.
Keep the child in cool environment,light clothing,and ensure extra fluid intake.
Viral fevers usually subside in 3-7 days.
Next Steps
Watch for other symptoms.
Health Tips
Already described.