tarabulba,

Can't tell you why your mom has the excessive mucus, but suggest she use (rent) a portable suction machine to suction out the excess mucus. My sister could not swallow or spit the mucus out and we never went anywhere w/o the suction machine. It made such a difference, I can't imagine not having the use of it. It cost her about $30.00 a month as her insurance would not cover the expense (it was the type of insurance she opted for, it also did not cover medications). Needless to say it was worth every cent and more, we used it to clean out her mouth after she vomited, she says she feels she would have choked w/o it. It really made a difference to her quality of life at the time.

I wish the best to your mom and you.

Nancy