He had an itch on his back.

他背痒。

This wool shirt itches my back.

这件羊毛衫使我背上痒。

He never stays in a job long. He gets itchy feet after two or three years.

他没有一样工作干得长久，过两三年他就会脚底痒，总想动一动。

My nose is itching.

我的鼻子痒。

She feels some vaginal itching.

她感痒。

I itch all over.

我全身痒。

According to dermatologists, you only need a moisturizer if your skin experiences the following: redness, scaliness or itchiness.

根据皮肤科医生的说法，只有在你的肌肤出现以下状况时你才需要润肤：、多鳞或痒。

A noncontagious inflammation of the skin, characterized chiefly by redness, itching, and the outbreak of lesions that may discharge serous matter and become encrusted and scaly.

一种非传染性皮肤炎症，主要症状为、痒、破损后产生浆状物质、结痂并呈鳞片状。

(b) of the acute phase (wet period): about 2-7 days, are beginning to have stuffy nose, increased nasal secretions, sneezing and nasal itching, nasal speech was occlusive, hyposmia.

（二）急性期（湿期）：约2-7天，渐有鼻塞，鼻分泌物增多，喷嚏和鼻腔痒，说话呈闭塞性鼻音，嗅觉减退。