Some of the most important cases in paediatric care are the children who "look fine"—yet keep coughing through the night, sleeping poorly, and never quite recovering despite treatment. A chronic cough is not always just a cough. When immunity, sleep, nutrition and emotional wellbeing are treated as one connected system, the real question shifts from "What is the symptom?" to "Why is this happening?" That shift is often the difference between temporary relief and real healing.