Should You Scrub Eczema to Get Rid of It? Why Scrubbing Makes It Worse

Why People Think Scrubbing Helps

Eczema often causes dry, flaky, rough patches that look like they need to be scrubbed off. The scaly appearance can resemble dirt or buildup, leading patients (or well-meaning family members) to believe vigorous washing will "clean it away." Some patients also confuse eczema with fungal infections or other conditions that respond to exfoliation.

In reality, those scales and flakes are signs of a damaged skin barrier — scrubbing removes what little protective layer remains and exposes raw, inflamed skin underneath.

What's Actually Happening in Eczema Skin

Eczema involves two key problems:

1. Defective skin barrier: Up to 50% of people with moderate-to-severe eczema have mutations in the filaggrin gene, which produces a protein essential for barrier function. Without adequate filaggrin, the skin loses water more easily and lets irritants and allergens penetrate.
2. Overactive immune response: The immune system overreacts to environmental triggers, producing excessive inflammation (primarily through Th2-type immune pathways). This causes redness, swelling, and intense itching.

Scrubbing attacks problem #1 directly — it physically strips away barrier lipids (ceramides, cholesterol, fatty acids) and damages the already fragile skin cells, making water loss and irritant penetration even worse.

The Itch-Scratch Cycle

Eczema itch is among the most intense forms of itch in medicine. Scratching or scrubbing provides momentary relief by activating pain signals that temporarily override itch signals. However, this mechanical damage triggers more inflammation, which triggers more itching — creating a vicious cycle that dermatologists call the itch-scratch cycle.

Breaking this cycle is one of the primary goals of eczema treatment.

What Dermatologists Recommend Instead

Gentle cleansing:

• Use lukewarm (not hot) water — hot water strips natural oils
• Choose fragrance-free, soap-free cleansers (like Cetaphil Gentle Cleanser or CeraVe Hydrating Cleanser)
• Limit baths/showers to 10-15 minutes
• Pat dry gently — never rub with a towel

The "soak and seal" method:

• Bathe in lukewarm water for 10-15 minutes to hydrate the skin
• Within 3 minutes of getting out, apply moisturizer to lock in water
• Apply any prescribed topical medications before moisturizer on affected areas

Moisturizer choices:

• Ointments (like petroleum jelly) provide the strongest barrier protection
• Creams with ceramides help restore the defective barrier
• Apply moisturizer at least twice daily, and after every hand wash
• The National Eczema Association recommends fragrance-free products with the NEA Seal of Acceptance

Prescription options for flares:

• Topical corticosteroids (appropriate strength for the body area)
• Calcineurin inhibitors (tacrolimus, pimecrolimus) for sensitive areas
• Crisaborole (Eucrisa) — a non-steroidal anti-inflammatory
• Dupilumab (Dupixent) — a biologic injection for moderate-to-severe cases

Frequently Asked Questions

Can I exfoliate at all if I have eczema?

Physical exfoliants (scrubs, loofahs, brushes) should be avoided on eczema-prone skin. Very mild chemical exfoliants may be used on non-affected areas with dermatologist guidance, but they should never be applied to active eczema patches.

My child's eczema looks dirty — should I wash it more?

No. Over-washing is one of the most common mistakes in eczema care. The discoloration is from inflammation and post-inflammatory pigment changes, not dirt. Gentle daily bathing followed by immediate moisturizing is the recommended approach per AAD guidelines.

Do bleach baths help eczema?

Dilute bleach baths (1/4 to 1/2 cup of regular bleach in a full bathtub) are recommended by dermatologists for patients with recurrent skin infections. The concentration is similar to swimming pool water and helps reduce Staphylococcus aureus bacteria that commonly colonize eczema skin. Always check with your dermatologist before starting.

Will eczema ever go away completely?

Many children outgrow eczema — about 60-70% of childhood eczema improves significantly or resolves by adolescence. Adult-onset eczema tends to be more persistent but can be well-controlled with proper skincare and treatment. There is currently no cure, but ongoing research into biologics and JAK inhibitors is improving outcomes significantly.