<s>[INST] MY SISTER WHO IS 45 YEARS OLD HAS BEEN DIAGONISED AS HAVING EMPYEMA AND IS NOW IN APOLLO HOSP IN BANGALORE UNDERGOING TREATMENT FOR THE LAST22DAYS. THE PLEURAL FLUID HAS ALMOST BEEN DRAINED BUT NOW THE DOCTOR  SAYS THERE IS AIR BUBBLES IN THE LUNGS WHICH IS CAUSE FOR CONCERN .KINDLY LET ME KNOW THE SERIOUNESS OF THE PROBLEM [/INST] Hi thanks for contacting HCM...Your sister is having lung infection in form of empyema....So for that antibiotic given....And if needed ICD insertated which has been done in your sister case....Now this air bubble can be from starting pneumothorax....In this condition patient suffer from chest pain and breathlessness also....It can be life threatening ...So constant observation needed....If dyspnea more and blood oxygen level falls then oxygen supplementation needed......If needed chest tube drainage necessary for relieving chest pressure...You are in good hospital ...So condition is serious and follow doctors advise....Take care ... </s>