Hi thanks for contacting healthcare magic. Noted you had first viral flu.... In viral infection if immunity not maintained secondary bacterial infection can occur. So following flu you had chest pain ... What treatment you given ???which antibiotic??? Is there consolidation in x ray ?? Anyhow during hospital stay you might have given proper antibiotic.... Just now if you feel well you have to maintain your immunity........ Take balanced diet.... Fruits more... Less spicy and fried food for few days... After few says you can repeat x ray to look for resolution of consolidation... If fever, chest pain like unusual clinical feature develop then contact er for that. Take care.....