stypticum

例句：

1. 1.The patient's skin was covered with a stypticum that resembled a rash.
   患者的皮肤上布满了类似疹子的斑点。
2. 2. The doctor examined the patient's stypticum and found it to be caused by an allergic reaction.
   医生检查了患者的斑点，发现它是由于过敏反应引起的。
3. 3. The stypticum on the patient's arm had been present for several weeks without any visible improvement.
   患者手臂上的斑点已经存在几周了，没有任何可见的改善。