A 45-year-old patient complains of a skin rash on the trunk and upper and lower limbs. The patient associates the development of this rash with a recently experienced stressful situation. Objectively, there are inflammatory papules on the skin, which have a tendency to spread and are covered with loose silvery-yellow scales. When elements of the rash are scraped, the "stearin spot" symptom is observed. The patient's genealogical history is normal. What is the most likely diagnosis in this case?