Which of the following factors is the primary etiological factor in psoriasis?

Explanation: Moisturizing the skin is essential for managing psoriasis and preventing dryness and scaling. Regular use of moisturizers helps maintain skin hydration and reduce the discomfort associated with psoriasis.

Incorrect choices: a. Encouraging the patient to pick or scratch the affected areas can worsen psoriasis and lead to skin damage and infection.

b. Applying hot packs to the skin lesions can exacerbate psoriasis and should be avoided. Lukewarm or cool packs may provide relief for some patients.

c. A diet high in spicy and acidic foods is not recommended for psoriasis patients, as certain foods may trigger flare-ups or exacerbate symptoms. A well-balanced, anti-inflammatory diet is more appropriate for psoriasis management.

Explanation: Psoriasis is an autoimmune skin disorder where the immune system mistakenly attacks healthy skin cells, leading to the rapid buildup of skin cells and the formation of red, scaly patches on the skin's surface.

Incorrect choices: a. A contagious bacterial skin infection - Psoriasis is not caused by bacteria, and it is not contagious.

c. A fungal infection causing itching and rash - Psoriasis is not caused by a fungus; it is an autoimmune condition.

d. A viral skin condition resulting in fluid-filled blisters - Psoriasis does not result in fluid-filled blisters; it presents as red, scaly patches instead.