Pruritus (Itching)

Symptoms

The main complaint with pruritus is an itching sensation that can lead to scratching. Depending on the cause, the itch may be accompanied by other skin symptoms such as:

• Redness
• Bumps or blisters
• Dry, flaky skin
• Rash

Causes

Pruritus can have many causes, including:

• Dry skin: Especially common in the elderly and in cold, dry climates.
• Skin conditions: Such as eczema, psoriasis, scabies, and other skin infections.
• Systemic diseases: Such as liver or kidney diseases, thyroid problems, and diabetes.
• Allergic reactions: To food, medications, or contact allergens such as nickel or perfume.
• Pregnancy: Women sometimes experience itching, especially on the belly and legs.
• Genetic factors: Certain forms of itching can be hereditary, especially in the case of chronic skin conditions like eczema.

Specific forms of pruritus include:

• Pruritus Senilis: Itching that mainly occurs in the elderly, often caused by skin dryness due to the natural aging process.
• Pruritus Brachioradialis: Itching that focuses on the outer forearm, often associated with exposure to sunlight.
• Notalgia Paresthetica: Characterized by itching and sometimes a tingling sensation in a specific area on the upper back, often caused by nerve compression in the spine.

Diagnosis

The diagnosis of pruritus is made by a doctor based on:

• Medical history: To identify underlying causes.
• Physical examination: Inspection of the skin for signs of skin conditions or external irritation.
• Laboratory tests: Blood tests can help detect systemic causes such as thyroid problems or allergies.

Treatment

The treatment of pruritus depends on the underlying cause:

• Moisturizing creams: For dry skin.
• Topical corticosteroids: For inflammatory skin conditions like eczema.
• Antihistamines: For allergic reactions.
• Treatment of the underlying disease: For example, diabetes or kidney disease.

Self-Care

• Avoid scratching: This can damage the skin and cause more itching.
• Keep the skin moisturized: Use moisturizing creams daily.
• Wear loose, cotton clothing: This can reduce irritation.
• Use mild soap and lukewarm water when bathing: Avoid hot water, which can dry out the skin.
• Use a humidifier: Especially in dry climates or during the winter months.