thorn in the flesh

Etymology
With reference to the Bible 2nd Epistle of Paul to the Corinthians, chapter 12, verse 7. 2 Corinthians 12.7

Noun

 * 1)  A persistent difficulty or something very annoying that will not go away.

Translations

 * Finnish:
 * French:
 * German:
 * Indonesian:
 * Malay: duri dalam daging
 * Russian: бельмо́ на глазу́