Cough Clear-A Syrup (Ambroxol, Guaifenesin, and Terbutaline) is mainly used for a chesty cough with thick mucus and may help clear phlegm from the airways. It will not directly relieve a blocked nose, so you may still need saline nasal drops, steam inhalation, or a decongestant (pseudoephedrine) for relief. Use it only if your cough is productive, and avoid it if you have heart problems or experience palpitations or tremors. If symptoms persist or worsen, it is best to consult a doctor for proper assessment and treatment.