Hello dear , hi
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I  have evaluated your query thoroughly .
*  This is in relation with occupational hazard through inhalation of coal 
    power  plants  fumes  damaging your lung .
*  Guidelines for better  recovery
-   Always  use  face  mask ( triple layer ) from entering the plant  till exit
    of  the  power  plant .
-   Maintain enough hydration levels .
-   Consume  balanced  nutritious  diet .
-   Inhalation of vapors of boiled water  added  tincture  benzoin  with 
    blanket  covered  over  the  head 2 times  a  day .
-   Gargles  with  salted  lukewarm  water  added peppermint  oil  3 times 
     a  day .
-   Regular walking in fresh air  , deep breathing exercises  &  
YOGA  will
     be  your  major  supporters  for  better  health .
Hope this clears your query .
Wishing you fine health  ahead .
Regards .