Hello madam, I am sorry that your daughter is suffering from fever. Fever wiith sneezing probably suggest that child is suffering from viral upper respiratory infection. Normal course for viral fever is it subsides on its own in three to four days. All that is required is fever medications to keep her comfortable, antihistaminics for sneezing and plenty of fluids to keep her hydrated. As long as child is active, taking small quantity of food you can wait for three days as your doctor mentioned. If fever doesn t subside in three to four days, she might need few blood tests/urine test and may require antibiotics. But keep in mind danger signs like frequent vomiting, not taking even fluids with decreased urine output ( For the moment give her some bed rest, spend some quality time with her. Kids are usually more tolerating than us, keep them engaged. Take care.