Which condition is described?

Fever blisters, or cold sores, are caused by the herpes simplex virus and typically appear as fluid-filled blisters on or around the lips. They are often triggered by stress, illness, or sun exposure and do not present with dry skin or a family history of allergic conditions, making them an unlikely diagnosis in this case.

Shingles is caused by the reactivation of the varicella-zoster virus and typically presents as painful, blistering rashes in a dermatomal distribution. Shingles is less likely in this scenario, particularly with the absence of pain and the presence of dry skin, which is not characteristic of shingles.

Acne is a common skin condition characterized by pimples, blackheads, and cysts, primarily affecting adolescents and young adults. It does not typically cause severe itching or dry skin, nor is it associated with allergic rhinitis. The symptoms presented do not match the characteristics of acne.