There are several synonyms for the phrase "touches sore spot" that convey a similar meaning. One such synonym is "hits a nerve," which suggests that someone or something has touched on something that causes discomfort or emotional pain. Another synonym is "stings," which implies a sharp, sudden pain or discomfort. Similarly, the phrase "rubs the wrong way" suggests that someone or something is causing irritation or annoyance. Finally, the term "triggers" is often used to describe situations or comments that elicit a strong emotional response due to past experiences. Whatever the synonym, the underlying concept is the same: something has touched on an area of sensitivity or discomfort.