rub salt into the wound

نمک رو زخم کسی پاچیدن

نمک روی زخم پاشیدن
‘to make something – usually a situation – which is already painful, unpleasant or difficult even worse’. It doesn’t refer to self - inflicted pain but rather pain which is being inflicted on one person by another, often deliberately, or as a result of a situation which is out of a person’s control.

گاهی *از همه بدتر* هم معنی میده