Hives have a variety of patterns. Red, round wheals with a dusky center are a very common presentation. The border is elevated and center is flat.

Lesions vary in extent from a few to hundreds of plagues. They can be localized or cover wide areas of the body. They can be sparsely separated or dense and confluent.

Round plaques have expanded and become confluent. The entire lower leg was swollen, itchy, and painful. Large dense plaques sometimes become dark blue in the centers.