Been suffering from dry cough since one week. Emptied a strip of D cold Total, a bottle of Tusq-D, and even tried homeopathy medicine. None has worked. No cold, fever , just annoying dry cough every few mins. Am recommended Azee 500 by a friend. Is it good? OR any other remedy for quick (immediate) relief, as I cannot keep coughing in office and in meetings all the time.