Immersing in cool water for 10-15 minutes is done for which degree of burn?

Immersing in cool water for 10-15 minutes is done for which degree of burn?

Explanation
  • Immersing in cool water for 10-15 minutes is done for a second-degree burn
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  •  Immersing in cool water may affect two layers of skin.
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  • Charred Skin having no pain is the symptom of 3rd degree of burn
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