3-year-old’s ‘asthma’ cough was a warning sign of a fatal heart condition

A cough in a young child is often linked to a cold, allergies or asthma. But when it persists, returns repeatedly or comes with unusual tiredness and breathlessness, it deserves closer attention. The tragic death of three-year-old Penny Dunn in England has renewed questions about recognising less obvious signs of serious illness in children.Penny’s mother, Courtney Sherwood, is now urging parents to trust their instincts when something about their child’s health does not seem right.Penny Dunn’s cough did not go awayAccording to Kennedy News and Media, Penny developed a cough around Christmas 2025. The three-year-old, who lived in Gloucestershire, England, had reportedly been healthy and rarely ill before then.Her mother, 27-year-old Courtney Sherwood, said the cough briefly improved before returning and becoming persistent. She and Penny’s father took her to the doctor three times.