I am sorry for I cannot comment any thing. It is important to consult your doctor, before starting any new exercise program, especially if you have a medical condition like a hernia. They can advise you on whether it is safe for you to do Kapalabhati or other exercises, based on your present medical history and condition. In general, Kapalabhati is a breathing technique that involves forceful exhalations and may create pressure in the abdomen, which could potentially worsen a hernia. Therefore, it is important to get medical advice before doing any exercise if you have a hernia.