rub salt into the wound/into somebody's wounds
rub salt into the woundor
rub salt in the wound
COMMON If someone or something rubs salt into the wound or in the wound, they make a situation that is already bad for a person seem even worse. I wasn't allowed to eat anything for 24 hours before the operation so I was really hungry and just to rub salt into the wound, had to sit there while Zoe ate the most delicious-looking pizza. The police rubbed salt in the wounds by waving money in the strikers' faces, a reminder of all the overtime they were earning.