Conversation: The conversation between human and AI assistant.
[|Human|] HI good morning... My 4 and half year son has been vomitting from morning, for me it looks like food poisoning, no fever and he is active,  no loose motion also, just that what he throws out smells bad. shall i start with zanocin liquid for 3 days or 5 days?
[|AI|]  Welcome to the ChatDoctorAs your child has vomiting without any diarrhea or fever, it may be due to food poisoning or gastritis. There is no reason to start any antibiotic so early. I would recommend you the following measures to help him:1. You can give him antiemetic such as ondansetron or Risperidone to relieve vomiting. Also use lansoprazole tablet for gastritis.2. Offer him oral rely Chat Doctor.