<s>[INST] Hi. My 13 month old daughter has had a fever of about 39 degrees C or a bit higher since Thursday - 3 days ago. Her pediatrician says its probably a virus infection. She has no other symptoms, just fever. The doctor checked for ear /throat infection and its all clear. I have been giving her advil for the fever and it helps to bring it down, but it goes back up again before its time for her next dose. What could this be and what do I do? [/INST] Hi Dear, Welcome to Chat Doctor. Understanding your concern. As per your query your daughter have symptoms of viral infection which seems to be due to acute gastroenteritis leading to symptoms of nausea, fever. Poor immunity of body is responsible for this. Need not worry. I would suggest you should take Defense Chat Doctor.  Take ibuprofen one tablet twice daily. Take soft foods to avoid irritation to the throat. Apply cold compresses and do tepid sponging. You should avoid cold carbonated beverages. You should visit gastroenterologist once and get it examined and start treatment after proper prescription. Avoid outside food and hot and spicy food beverages. Hope your concern has been resolved. Get Well Soon. Best Wishes, </s>