Hello,
Thanks for your query on HCM
"As"per your clinical history is concerned please follow like this-
1)Do a physical examination by your treating Doctor[pulmonologist] to confirm whether it is respiratory or cardiac origin and to confirm it do few investigations like [CBC, chest X-ray and ECG]
2)Discuss with your treating Doctor about [Antibiotics and 
Cough syrup]
Do take few lifestyle modifications like this -
1)Try to avoid cigarette smoke. 
2)Get vaccinated. Getting a yearly 
flu vaccine can help protect you from getting the flu. You may also want to consider 
vaccination that protects against some types of 
pneumonia.
3)Try to wash your hands. To reduce your risk of catching a viral infection, wash your hands frequently and get in the habit of using hand sanitizers.
4)Try to wear a surgical mask when go in public places.
Hope that helps