Question

Why water to be used in nasal drops is freshly boiled and cooled?​

Answer 1

Answer:

First, rinse only with distilled, sterile or previously boiled water. Tap water isn't safe for use as a nasal rinse because it's not adequately filtered or treated

Explanation:

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Answer 2

Answer:

boiling and cooling water is process of distillation

Explanation:

boiling of water sterilizes water as well as remove any dissolved gases that's why water boils