Answer:
The correct answer is option E, that is, toxic epidermal necrolysis.
Step-by-step explanation:
The painful exfoliation of the mucous membranes and the skin two weeks after starting allopurinol indicates Toxic Epidermal Syndrome. A potentially life-threatening dermatologic ailment featured by widespread necrosis, erythema, and bullous detachment of the mucous membranes and epidermis is known as the toxic epidermal necrolysis. The further leads to exfoliation, and possible death or sepsis.