Evaluation and management of a patient with chronic pruritus

[...]her overall pruritus severity score (range, 0-10; 0, no pruritus; 10, worst pruritus imaginable) reduced from 9 to 6 within 2 weeks.\n Their immunomodulatory effects make phototherapies especially useful for treating chronic pruritus caused by inflammatory dermatoses, such as atopic dermatitis, psoriasis, or solar urticaria. [...]if prurigo nodularis is present, as in this case, both prurigo caused by uncontrolled chronic scratching and prurigo caused by drug eruptions or reactive perforating collagenosis have to be considered.