pore	毛孔
hair follicle	毛囊

mole	痣
freckle	雀斑
pigment	色素
wrinkle	皱纹

sweat	汗水
perspiration	汗

to sweat	流汗
to perspire	出汗

break out into a sweat
出汗

itch

痒

to itch	发痒
to scratch	挠

My nose itches!
我的鼻子痒痒！

Expressions

You scratch my back and I'll scratch yours.
你帮我挠背，我也帮你挠。（意思为：咱们互惠互利）

to pinch

掐

Pinch me. I think I'm dreaming.
掐我一下，我觉得我在做梦。

rash	皮疹
boil	疖，皮下脓肿
wart	疣
blemish	瑕疵