1) Maybe propping your head up higher will help, and don't bend forward after eating for half hour at least. I get a lot of runny noses ... and there are more nose surprises to come, but I'll let you discover them one at a time. There is some little muscle that is supposed to prevent this that gets weakened with
ALS, too, so you can't win for losing with this stupid disease.
2) Me too. I think ice chips are safe. You can also get travel swabs, for brushing teeth. They are soothing to gums and tongue. There are (I think) OTC dry mouth sprays you can spritz in your mouth. Most mouth washes contain alcohol, so they dry your mouth out further and also change the PH in your mouth, so I've stopped using them. Dissolving something in your mouth is ok if it doesn't increase saliva. I use Hershey kisses, but they do thicken saliva, and I think I'm really not "allowed" to have them. Avoid citrus flavors.