Moisturizer is the absolute foundation of atopic dermatitis treatment. It compensates for the skin barrier function, blocks external irritant penetration, reduces itching, and also reduces the amount of topical steroid used. Key principles: ①Amount — apply generously (30-60g per day for the whole adult body), ②Frequency — 2+ times per day, ③Timing — apply within 3 minutes of showering while there is still slight moisture on skin.

Moisturizer selection criteria: Products containing ceramide, cholesterol, and fatty acids are effective for skin barrier repair. Choose products without fragrance, preservatives (parabens), alcohol, or colorants. Apply a small amount to the inner arm first and observe for 48 hours before applying to the whole body. Cream or ointment formulations have higher moisturizing power than oils.

Korean Medicine Perspective

Among external Korean medicine treatments, herbal decoction (Huangbai, Kushen, Kochia, etc.) compress followed by moisturizing is effective in simultaneously reducing itching and inflammation. Internally, since the skin maintains moisture only when yin-blood (陰血) is sufficient, Si-mul-tang type prescriptions with Danggui, Shudi, and Baishao replenish body fluids. Rinsing the affected area with warm herbal water for 30 seconds to 1 minute before applying moisturizer increases absorption.