Using a clean, sterile cotton swab, apply the lemon juice to the affected areas prior to bedtime.

睡前用干净、无菌的棉拭子沾上柠檬汁，涂抹在患处。

youdao

But you can use a swab or cloth to clean the outer part of the ear.

但是你可以用棉签或者布把你耳朵外面的部分擦干净。

youdao

But you can use a swab or cloth to clean the outer part of the ear.

但你可以用棉花或者布去清理耳朵的外部。

youdao

But you can use a swab or cloth to clean the outer part of the ear.

但你可以用棉花或者布去清理耳朵的外部。

youdao