My father is having asthma from last 15 years and also heavy cough. From last few years we tried all the nearby doctors and also much medicine and enhaler as per he guided , but there is no any changes in his disease , now he is facing so much problem ,he is telling that while cough is coming he is feeling like the darkness is all the side and full body is paining and chest also. Please tell me what should I do , I need your guidance for my father , kindly inform me about this.