cotton swab
noun (North American English)(also cotton bud British English, Q-tip™ North American English, British English)
a small stick with cotton wool at each end, used for cleaning inside the ears, etc. （用于清洁耳朵内部等的）棉签 Dab on a bit of face lotion with a cotton swab and gently rub it on the area. 用棉签轻抹一点洗面奶，轻轻擦在该部位。