@shs I'm not the expert, but the way I do my own postural drainage is to lie flat on my back and do some huff coughs, like either one good one or three short ones (you just sort of flap your arms against the side of your chest and push the air out of your lungs and the sound is like a huff). You can also put your legs up, too. I bet you could just go on You Tube and type in "postural drainage methods" and there will be something. Nan