A cough is often caused by a viral infection, and antibiotics are not helpful in most cases. Using antibiotics unnecessarily can lead to resistance and side effects. Simple measures like warm fluids and rest are usually sufficient for relief. Consult a doctor to check the cause and decide if any specific treatment is needed.

Since Azithromycin, Levocetirizine, and Sertaconazole have not helped, your condition may not be a simple infection or allergy. It is important to consult a doctor for proper evaluation, tests, and treatment based on the exact cause rather than self-medicating.