For a 22-month-old with suspected pneumonia, the most important step is an immediate evaluation by a paediatrician. Please do not give over-the-counter cough medicines, as they are not safe for this age. If the doctor confirms bacterial pneumonia, they will likely prescribe an antibiotic like amoxicillin. For viral cases, supportive care is key. At home, keep your baby well-hydrated, use a cool-mist humidifier to ease her cough, and ensure she gets plenty of rest. Seek emergency care immediately if you notice signs of laboured breathing, such as rapid breathing, chest pulling in, or bluish lips. Your paediatrician will guide the exact treatment safely.