止痒剂

例句：

1. 1. The doctor prescribedastringent ointment for myitchy rash.
   医生给我开了止痒药膏来治疗我的皮疹。
2. 2. She applied theastringent cream to her sunburned skin.
   她把止痒膏涂在晒伤的皮肤上。
3. 3. Astringent tea is good forrelieving sore throat andcough.
   喝一些收敛茶有助于缓解喉咙痛和咳嗽。