Sir/mam, Mr mother is suffering from cough. She has examined by doctor but cough isn't under control. When she cough it continues for long duration, and stops only when we nebulize her then it comes under control. It seems that any medicine isn't working. Most of the time it seems that every thing is normal but sudden cough Starts and continues till we nebulize it. This happens at fixed interval, about 8 to 8:30 pm and sometime when she eat anything.