unguent

这种药膏能有效缓解皮肤干燥。

This ___unguent can effectively relieve dry skin.

这种药膏能有效缓解蚊虫叮咬引起的瘙痒。

This ___unguent works well to soothe the itch from mosquito bites.

这位老人在伤口上涂抹了一种药膏来缓解疼痛。

The elderly man applied an ___unguent to his wound to soothe the pain.