It's crucial to know when to seek medical advice for a child with a fever. You should consult a healthcare provider if: - The child is younger than 3 months with a rectal temperature of 100.4°F (38°C) or higher. - The fever persists for more than 3 days. - The child has additional symptoms such as rash, difficulty breathing, or persistent vomiting. - The child appears unusually irritable, lethargic, or unresponsive. Prompt medical evaluation can help identify any serious underlying conditions.
