M has been coughing pretty much non stop since 3 pm. He is using his cough assist, I am doing suction but it's unbelievably persistent and paroxysmal. His whole body shakes when he tries to cough. He believes it's caused by reflux and has been prescribed Omperazole, domperidone and small 2 hourly feeds. Nothing is helping and he's getting really tired. Hyoscine and Botox for saliva management has made no difference in frequency and ferocity of coughing. Has anyone experienced this?