Ascoril contains ingredients like ambroxol and guaifenesin, which are designed to thin mucus and stimulate your cough reflex to help clear your airways. If your cough is strictly dry, these ingredients can sometimes overstimulate your throat, making you cough more frequently without bringing anything up. Additionally, the bronchodilator in the syrup can occasionally cause mild throat dryness or irritation. I recommend staying well-hydrated with warm fluids to soothe your throat. Please consult your doctor so they can evaluate your chest and safely prescribe a dedicated cough suppressant if appropriate.