Child with fever, 3 days. Have attached.

My daughter is almost 6. She had had fever for the last 3 days. The temp goes up to 103, then goes down to 98 after meftal or paracetamol goes up again ate 5 hrs and comes down. She has  slight shivering once in a while. She's also on azithral.200. 2 doses done as of now. I'm giving her paracetamol every 5 hours now and meftal p once in 8 hrs or as reqd. Her fever increases mostly at noon and late evening. She's active with fever although when is high she feels a Lil tired. Her poop is normal, she has a bit of phlegm and occasional cough. Should it give blood tests. She had no symptoms of typhoid or malaria or anything else. So I'm not sure. Is this viral. When will this get better. Pl advice. I'm anxious. It's 3 days as of tonight. Her trend I have attached.