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In the Philippines it's available as an effervescent tablet to be dissolved in water. They still tend to work better than the western remedies (guaifenesin etc) even in this form IME.

Usually here in Canada it's available in capsule form which I find less effective.

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Same here actually, I find it slightly helpful but the effect’s useful time is limited. I’ve wondered if I could capture the gas released while bubbling and inhale that…
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Dissolvable tablets & powders are still useful for getting rid of mucus. Maybe inhaling is better, but anecdotally the tablets seem to work.
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The dissolvable tablets completely fix a runny nose for me. Much better than any nose spray, which tend to irritate the nose and lead to chronic runny nose if taken for too long.
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Have you tried a neti pot or similar?
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Same where I'm from, it's in pill / capsule form
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