I have used them off and on for years, but my sis tells me they can "backfire" as well. Don't want any backfires.
I can really get the gunk (if you get it bad you know "the gunk"), and I can't imagine NOT using it to clean that out. My sis says blowing my nose should be enough, but after several hours (awake or asleep) it gets crusty way up there and requires something more.
What have you heard if anything regarding anything negative.
David
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