What Are the Symptoms of Viral Urticaria?

Viral urticaria can cause generalized or localized erythema, with rapid onset and rapid resolution. In the early stage of the disease, the onset may be relatively delayed; however, lesions commonly involve the limbs and trunk. The typical skin lesions are绿豆-sized (mung-bean-sized) papules, often topped with small vesicles. After spontaneous resolution, transient hyperpigmentation may remain, but new lesions continue to appear and gradually fade as the body cools.