頭痕 [头－]

Jyutping tau4 han4
Pinyin tóu hén

Definitions (CC-CANTO)
  1. to have an itchy scalp; to be vexed
Definitions (粵典–words.hk)
  1. 形容詞
    形容​一個​好​難解​決​嘅​問​題
    having a difficult problem, thinking hard about a problem, "scraching one's head"; literally: itchy head
Definitions (Kaifangcidian)
  1. 頭疼 – 头疼
  2. 麻煩 – 麻烦
  3. 惹了點麻煩事 – 惹了点麻烦事