Why Does My Body Itch After a Shower? Discover the Causes and Solutions

Itching after a shower is usually from dry skin caused by hot water and soap. Use lukewarm water and moisturize right away.

Why

• Hot water strips natural skin oils.
• Soap dries the skin.
• Dry skin (xerosis).
• Hard water.
• Cold weather.

Aquagenic pruritus

Rare itching after water contact.

Fix

• Lukewarm water for 5 to 10 minutes.
• Mild soap.
• Moisturize within 3 minutes.

See a doctor

If itching persists.

Other causes

Eczema, liver or kidney disease.

Skin response

Itching after showering often results from dry skin, since hot water and soaps strip natural oils. Cold, dry air in winter worsens it. Hard water and strong fragrances irritate skin. Warm to hot water above about 104 F (40 C) triggers histamine release in some.

• Eczema, psoriasis and xerosis (very dry skin) are common causes.
• Aquagenic pruritus is itching without visible skin changes after water contact of any temperature, which is rare and may be linked to polycythemia vera, a blood disorder.
• Cholinergic urticaria involves hives triggered by heat.

Relief

Use lukewarm water, limit showers to 5 to 10 minutes, use mild fragrance-free cleansers and pat dry, then apply moisturizer within 3 minutes. Run a humidifier in dry weather. Antihistamines may help in aquagenic cases. See a doctor if itching is persistent, widespread, occurs with weight loss, night sweats or fatigue, or if there is a rash.

Skin response

Itching after a shower can come from dry skin due to hot water stripping oils, soaps, hard water or conditions like eczema. Aquagenic pruritus is a rare condition causing itching after water contact.

Relief

Use lukewarm water, limit showers to 5 to 10 minutes, use mild cleanser and apply moisturizer within 3 minutes. See a doctor if itching is persistent.

Skin barrier and conditions

Hot water removes lipids from the skin and increases transepidermal water loss. Hard water leaves mineral residues. Aquagenic pruritus is rare itching triggered by water at any temperature. Winter dry skin (xerosis) and eczema affect about 10 to 20 percent of people. Polycythemia vera can cause itching after hot showers in up to 40 percent of patients.

Relief

Use lukewarm water for under 10 minutes, switch to a syndet cleanser, pat dry and apply thick moisturizer containing ceramides within 3 minutes. Antihistamines may help rare aquagenic itch. See a doctor for persistent itching, especially with fatigue, weight loss or night sweats, which can indicate blood disorders or liver disease.

Based on data from the American Academy of Dermatology and the National Eczema Association