You are diagnosed to have Pleurisy with sharp pain
in chest left and pneumonitis
of leftLung without relief of pain and infections after multiple course of Antibiotics, Pain killers and Steroids. Pain not subsided means that Pleurisy and Lung infection
is not yet resolved. So you need to revise and repeat investigations CBC, RBS, CXR and investigations to exclude Tuberculosis
like Sputum for AFB, AntiTB test - Rapid Card test and IgG, IgM, IgA estimations, ECG (to rule out Cardiac Cause of chest pain
) and if possible CT Scan of Chest for which you need to consult your Doctor .