Though kapalbhati is good for asthma patients and emphysema, bronchitis, [but must not be practiced while the asthma attack is on], it is not recommendable for you to do kapalbhati with multiple bullous emphysema as I am afraid of bursts of the bulla because kapalbhati which can result to collapse of the entire lungs. You need to consult with your doctor before you start of schedule of kapalbhati pranayama with full case history.
You may also write for information with your complete case history as to whether what is the present report or status of your medical problem, so that we can write with other information on yogasanas and pranayamas as well as shatkriyas (six cleansing actions of yoga).
