A patient with a disease must be accompanied by a family member, and it is necessary to arrive early and also present a medical certificate stating that he is able to travel in pressurized aircraft.
Passengers who have undergone surgery in the lungs, heart or brain, should not board before 30 days. Other surgeries with less than 30 days can be boarded if you have a medical certificate. There is no contraindication for epileptic passengers, except when in a compulsive crisis.
For more information, please contact the airline responsible for your flight.