Started steroids from August 2015
Omnacortil 20mg and ended with 5mg alternative days in August 2016 .
With same problem of cough consulted another doctor and diagnosed as NSIP after HRCT Thorax and blood test's-ACE, CPK, CBC,ESR,
CRP,ANA,RFA(all the results are negative.
Now advised for lung biopsy for further investigation.
Advise me whether biopsy really needed
And further treatment process