pityriasis rosea

例句：

1. 1. She developed a rash on her arms after coming into contact with the petals of a rose.
   她接触玫瑰花瓣后手臂上起了皮疹。
2. 2.The doctor diagnosed her with pityriasis rosea and prescribed antihistamines for her.
   医生诊断她患有玫瑰糠疹，并给她开了抗组胺药。
3. 3.Pityriasis rosea is a common skin condition that can be treated with topical creams.
   玫瑰糠疹是一种常见的皮肤病，可以通过外用药膏治疗。