Question
The child is 4 years old and has had a low-grade fever for two days without improvement. After receiving intravenous treatment, the doctor initially diagnosed it as herpangina, but later found blisters on the hands and wants to inquire if it is hand, foot, and mouth disease.
Answer
Based on the description, both herpangina and hand, foot, and mouth disease are infectious diseases caused by enteroviruses. It is recommended to visit the hospital as soon as possible for a follow-up examination and necessary blood tests to confirm the diagnosis. Timely antiviral treatment is very important, along with attention to hydration and rest. I hope this information is helpful to you, and wish you good health!