18mo girl with large welts covering both thighs, almost identical in appearance. They were warm to the touch, pink, with a clear irregular outline and a handful of round, small welts near the edges. It has now moved down, her thighs are clear but for the outline, and the welting has moved down to her lower legs, almost to her ankles. It doesn't appear to bother her at all, and she does not have a fever.