Does hydrogen peroxide relieve itching?
Nov 29, 2025
Source: Cainiu Health
Dr. Liu Wenmin
Introduction
In general, hydrogen peroxide does not have an anti-itch effect. When experiencing itching, avoid scratching with hands to prevent skin damage and subsequent infection. Use mild moisturizing products to hydrate the skin and relieve itching caused by dryness. If there is mild skin inflammation, apply a specialized anti-itch ointment as directed by a physician. Keep the skin clean by washing with lukewarm water.
Under normal circumstances, hydrogen peroxide does not have an anti-itch effect. The detailed analysis is as follows:
Hydrogen peroxide's main active ingredient is hydrogen peroxide itself, whose primary function is to kill bacteria and clean wounds through oxidation. It does not relieve itching. Skin itchiness is typically caused by inflammatory responses, stimulation of nerve endings, or dryness. Hydrogen peroxide lacks ingredients that suppress nerve excitation, reduce inflammation, or moisturize the skin, so it cannot address the root causes of itching. Applying it directly to itchy skin may even irritate damaged tissue, worsen discomfort, and compromise the skin barrier, thereby exacerbating the itching.
When experiencing itching, avoid scratching with hands to prevent skin damage and potential infection. Use gentle moisturizers to hydrate the skin and alleviate dryness-related itchiness. If there is mild skin inflammation, apply prescribed anti-itch ointments as directed by a physician. Maintain skin cleanliness by washing with lukewarm water and avoiding harsh or irritating skincare products. Wear loose, breathable cotton clothing to minimize skin friction, and follow a light diet avoiding spicy foods to help maintain stable skin condition.
