tǐ-pún治本

to take radical measures

to take radical measures; to effect a permanent cure; to get at the root (of a problem, etc.)

English Wiktionary, “治本” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%B2%BB%E6%9C%AC · confidence: Medium (Wiktionary, Hokkien)