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Q: Which one of the following is a common ingredient in ear drops as dewaxing agent?
  • A. Potassium permanganate
  • B. Boric acid
  • C. Hydrogen peroxide
  • D. Zinc peroxide
Correct Answer: Option C - Hydrogen peroxide is a common ingredient in ar drops. It is a cerumenolytic solution that softens and dissolves earwax. Hydrogen peroxide can irritate the skin inside the ear canal if a person uses it too frequently.
C. Hydrogen peroxide is a common ingredient in ar drops. It is a cerumenolytic solution that softens and dissolves earwax. Hydrogen peroxide can irritate the skin inside the ear canal if a person uses it too frequently.

Explanations:

Hydrogen peroxide is a common ingredient in ar drops. It is a cerumenolytic solution that softens and dissolves earwax. Hydrogen peroxide can irritate the skin inside the ear canal if a person uses it too frequently.