Gargling with a warm saltwater solution can also ease a sore throat. (surrogateparenting.com)
Saline contains no medication; it is simply a saltwater solution, and it helps to loosen and thin secretions in the nose, making it easier to breathe. (verywell.com)
When enough salt is added to the water, the saltwater solution's density becomes higher than the egg's, so the egg will then float! (scientificamerican.com)