cold sore

US /ˈkoʊld sɔːr/
UK /ˈkoʊld sɔːr/
"cold sore" picture
1.

唇疱疹, 口唇疱疹

a small blister or group of blisters on the lips or around the mouth, caused by the herpes simplex virus

:
She woke up with a painful cold sore on her lip.
她醒来时嘴唇上有一个疼痛的唇疱疹
Applying an antiviral cream can help treat a cold sore.
涂抹抗病毒药膏有助于治疗唇疱疹