Thank you for your query on Healthcare Magic.
What medication is she taking now?Constipation
may be due to decreased oral intake during this febrile illness.
Continue the prescribed medication for the fever.
Give plenty of oral fluids and rehydration solutions to maintain her hydration.
Vomiting sensation may be due to gastritis
which is associated with fever or drugs.
Give her soft diet
and oral medication like omeprazole
can be given in prescribed dose for gastritis.
Consult the doctor for physical examination and for treatment.
Hope I have answered your query.