Thanks for writing your query.
syrup contains antiinflammatory drug Ibuprofen
which will help in relieving pain and fever
Loose motions can be due to infection of the gastrointestinal tract.
You should get her stool examined for any infection. Antibiotic can be started if needed according to the reports of the investigation.
You should try to maintain her hydration.
Give her light meals.
If her problem persists, get her examined by a Paeditrician.
I hope this is helpful to you.