Hi Doctor, My father is 62 years old now, he is having diabetes for past 13 years. He used to get seasonal cough. But now he is having more often continuous cough n cold since 2 months. At the time of coughing, he couldn t breath through nose. He is struggling to breath. I want to know the answers for following questions, 1. What is the reason for this continuous cough? 2. Will it be a severe problem? 3. Please suggest any specialist in salem or coimbatore? Thanks in advance, Regards, Vennila Vaithi