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.