What is the reason for vomiting and fever in a 4-year-old child?

Viral fever with gastritis, urine infection.

Urine routine, and microscopy.

Viral fever, urinary tract infection.

Food poisoning, viral fever, urinary tract infection.

If persists, do urine routine and microscopy.

1. Syrup Crocin DS (Paracetamol) (5 ml/250 mg) 5 ml if fever greater than 100 degrees Fahrenheit every 4 to 6 hours. Sponging with lukewarm water till the fever decreases to 99 degrees Fahrenheit. 2. Syrup Meftal P (Mefenamic acid) 5 ml if fever is not decreasing with Crocin. 3. Syrup Ondem (Ondansetron) (5 ml/2 mg) 5 ml three times a day, half an hour before food for two days. 4. Tablet Junior Lanzol (Lansoprazole) 15 mg one tablet mix in 5 ml water and give daily in the morning half an hour before breakfast for five days. 5. Start antibiotic. Syrup Taxim O Forte (Cefixime) (5 ml/100 mg) 5 ml two times a day for five days. Give ORS 4.2 mg one sachet mix in 200 ml water and give 3 to 4 sachets per day.

Watch for urine output, give plenty of fluids and bland soft diet.