Hi.
Thanks for your query.
Noted the history and understood your concerns.
You have a diagnosed problem of
sleep apnea and
asthma. Anything that enhances these problems will have detrimental effects and also add on the existing problems like
flu, exposure to any allergens. Since you were exposed to something like this, there was enhancement of the problems.
sinus congestion, coughing will have inflammatory role causing the enhancement of the problems.
I would advise you the following in such a situation:
To get a proper clinical evaluation and examination by a Specialist like a Pulmonologist; investigations like pulmonary functions,
CT scan of the
sinuses and chest to rule out any infective focus and to get an appropriate treatment to get a cure.
Multivitamins particularly Vitamins A and D are known to increase the resistance power, hence strongly recommended under the guidance of your Doctor preferably after blood tests.
Avoid exposure to allergens which you know are the enhancing factors.