Idiom
touch a sore spot and touch a sore point
Theme: SENSITIVE
to refer to a sensitive matter that will upset someone.I seem to have touched a sore spot. I'm sorry. I didn't mean to upset you.When you talk to him, avoid talking about money. It's best not to touch a sore point if possible.
Slang
touch a sore point
Theme: HARM
tr. to mention something that upsets someone.I touched a sore point with Larry when I mentioned taxes.That touched a real sore point with me.