A cold and cough lasting 2 days are usually due to a viral infection, and antibiotics like Zifi are not always needed. You may take Diominic DCA as advised for symptom relief. Take rest, drink warm fluids, do steam inhalation, and avoid cold exposure to help your body recover. Keep your throat warm, stay hydrated, and avoid taking strong medicines on your own unnecessarily. If symptoms worsen, last longer, or you develop a fever or breathing issues, consult a doctor for proper guidance.