The combination of leg swelling and a persistent dry cough with yellow mucus in a 69-year-old is a combination that needs urgent evaluation. Leg swelling with cough can be a sign of heart failure (where the heart is not pumping efficiently, causing fluid to accumulate in the legs and lungs), or it could be a respiratory infection alongside venous insufficiency. At 69, this should not be left without a proper clinical examination and ECG.
Next Steps
Please see a doctor in person urgently â get an ECG, chest X-ray, and basic blood tests done. Feel free to consult me directly on Practo for a detailed evaluation as well.