A 46-year-old man came to a doctor with complaints of a rash on his hands that appeared one week ago and is accompanied by severe itching. The patient has a history of bronchial asthma and has seasonal allergies. Physical examination detects dry skin of the hands and multiple erythematous papules and vesicles with scrous contents, as well as areas of lichenification and excoriation, on the back of both hands. What is the most likely diagnosis in this case?