治 means to heal; to govern and is a JLPT N3 kanji. It has 8 strokes and uses the water (three drops) radical (氵).
Stroke order · 8 strokes
On'yomi (音読み)
ジ、チ
Kun'yomi (訓読み)
おさ(める)、なお(る)
Radical
氵 · water (three drops)
Strokes
8
How to remember 治
Guiding water (氵) along the right course — controlling floods was the essence of ancient governance. Healing an illness, 治る, is calming the body's own flood.