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1·The loess of areola back is very loose, rain 1 points light rain and then will slip an ascent.

小区后面的黄土非常稀松，下一点小雨就会滑坡。

2·Frequently there is an inflammatory areola around the excoriation or a covering of yellowish dried serum or red dried blood over it.

抓痕周围常有炎性红斑，其上覆有淡黄血清痂或红色血痂。

3·Wheals are evanescent, edematous, plateaulike elevations of various sizes. They are usually oval or of arcuate contours, pink to red, and surrounded by a pink areola.

风团为暂时性、水肿性、隆起性皮损，似平台状，大小不一，呈卵圆形或表面呈弧形，粉红色至红色，周围有红晕。