Thank you for your query on Healthcare Magic.
Your daughter looks like to have a Viral illness with gastritis
Give Tylenol in prescribed dosage for fever evry 8 th hourly depending on the presence of fever.
For vomitings you can give an antiemetic like ondanstron in prescribed dosage.
Give sips of oral rehydration solutions like Pedialyte
and coconut water to prevent dehydration
Monitor her hydration.
Consult your Pediatrician
for the examination of the child and for treatment.
Hope I have answered your query.