hidden rashes

例句：

1. 1.The doctor found a hidden rash on his arm that he had never noticed before.
   医生在他的手臂上发现了一个他以前从未注意到的隐藏疹子。
2. 2. She was diagnosed with a hidden rash that would require treatment.
   她被诊断出患有一种需要治疗的隐藏疹子。
3. 3. The rash disappeared after the patient took the medication prescribed by the doctor.
   在患者服用了医生开的药物后，疹子消失了。