Hard candies symptoms and conditions

Starting taking Lotrel 10/20 a week ago, newly prescribed as hypertensive and diabetic. Along with Lotrel I am also taking Glucophage. Since my sugar and bp were all high 178/112, sugar in the 340 range, both these medicines are doing well for me. The only symptom I am feeling from Lotrel is the dry cough, especially before sleeping. I am keeping sugar free hard candies next to me that seems to do the trick. So far that is it...i am reading so much negative....does anyone have anything positive? So far my bp has dropped to 130/88, so I am feeling so much better.