rub salt in/into the wound

:  to move along the surface of a body with pressure :  grate

:  to fret or chafe with or as if with friction

:  to cause discontent, irritation, or anger

:  an unevenness of surface (as of the ground in lawn bowling)

:  obstruction, difficulty

:  something grating to the feelings (such as a gibe or harsh criticism)

:  a crystalline compound NaCl that consists of sodium chloride, is abundant in nature, and is used especially to season or preserve food or in industry —called also common salt

:  a substance (such as Glauber's salt) resembling common salt

:  a mineral or saline mixture (such as Epsom salts) used as an aperient or cathartic

:  to treat, provide, or season with common salt

:  to preserve (food) with salt or in brine

:  to supply (an animal) with salt

:  saline, salty

:  being or inducing the one of the four basic taste sensations that is suggestive of seawater — compare bitter, sour, sweet

:  cured or seasoned with salt :  salted

:  lustful, lascivious

:  an injury to the body (as from violence, accident, or surgery) that typically involves laceration or breaking of a membrane (such as the skin) and usually damage to underlying tissues

:  a cut or breach in a plant usually due to an external agent

:  a mental or emotional hurt or blow

:  to cause a wound to or in

:  to inflict a wound

: past tense and past participle ofwind