Hi,Dear ,Good Evening. Thanks for you query to HCM.This is Dr.Savaskar from India helping you out of your health query. I studied your query in-depth and understood your health concerns. -In My opinion the Cause and Treatment - -for shortness of breath and cough is as follows- a-Cause in your case could be-Allergic Chronic-Bronchitis due to working site or living site-air pollution/contamination by allergens. b-Laughing or the throat clearing acts precede by deep inspiration which initiates cough reflex with these acts due to the chronic infection / allergens create productive/ mucus cough-to expel it by diaphragmatic and chest muscles. Treatment-is by mucus controlling agents a-Licorice for reversal of asthma is known b-Acetylcysteine 200 / ambroxol 30 mg Capsules orally would take care of the irritant cough by secretolytic actions. c-Vapour Inhalations 3/4 times a day are soothing remedies recently practiced d-enough hydration by proper liquid intakes would reduce your chronic bronchitis and would reverse even the asthmatic chronic tendancies of your lungs / GI systems-which are involved in your case. e-Bronchial and respiratory care is very basic to get the relief to your shortness of breath and cough you have. VIMP-TIP-Hope this would help you to plan treatments with your team of expert Physician / Pumonologist / allergen specialist/and Chest specialist doctor. Wellcome for further queries for this issue to HCM. Wishing a fast recovery for you. Have a Good day. Regards Dr.Savaskar M.N. M.S.Genl-CVTS Super -Specialist in Non-Curable Chronic Diseases(NCCD) and Expert in therapy for-Cancer/Asthma/Psoriasis / Autoimmune disorders/Rejuvenation protocols for tissue and organ failures- etc.