Re: Cough Assist - love it!
My husband got a cough assist machine summer 2008 when he had a chest cold and was nearly drowning. The ALS pulmonologist and resp. therapist met us at the ER and got things under control using the cough assist machine. The RT spent about 30 minutes with us and sent the machine home with us. My hubby used it initially only to clear gunk, but then found it would also pull out plugs of food that went down the wrong way... it was a decent substitute for a heimlech maneuver, when we were at home anyway. Hubby continued to eat against medical advice so we set the machine up right by his chair and he continued to enjoy soft versions of his favorite foods. As his lung function decreased, the doctor recommended using it twice a day just to keep his lungs in as good condition as possible.
It takes a while to get the hang of it. Over time, you will learn to hear the difference and know when to use just the exhale vs inhale/exhale. We used it on automatic for a while, adjusting the duration of both inhale/exhale and the duration of the pause inbetween. We found the settings that weren't too uncomfortable but were still effective, and marked the machine with a Sharpie. The knobs can get bumped and it seems like the machine isn't working and it happens just when there's a crisis. So, mark the settings and it's easy to spot when the knobs have gotten off of the correct settings. If it was just some deep phlegm causing a problem, that was too deep to get with suction, we used cough assist on inhale/exhale. If it was food, we flipped it to manual and used exhale only because you don't want to push plugs and particles further down. Hubby would put on for 2 or 3 seconds, take a break for 1 or 2 seconds, and then do it again, and keep doing it until the food got up to the back of his throat. With Bulbar Onset, he lost the ability to move his tongue so couldn't move the food forward enough to spit it out - here's where the suction machine helped.
You need both machines really. Keep trying. The skill level in using cough assist will come with experience. We eventually got our own. We've even traveled with it, take it on a suitcase trolly to friends houses when we were going to have a meal, borrowed an older version (louder but smaller) from the local hospital and took it on a 3,000 mile flight in a carry on bag (with wheels). He couldn't use it on the plane, there are no plugs, so he used liquid nutrition through the PEG tube for the duration of the flight.
Your ear will learn to hear the difference to know which machine to grab and what settings to use. Suction works well for mouth and back of throat, but when it's below the epiglottis, cough assist is the only thing that works.
Good luck!