Difficult to Cure is the fifth studio album by the British hard rock band, Rainbow, and was released in 1981. The album marked the further commercialization of the band's sound, with Blackmore once describing at the time his like of the rock band, Foreigner.
The album material was started with singer Graham Bonnet still in the band, getting as far as recording an early version of "I Surrender", before Bonnet left the band due to his dissatisfaction over the material.
American singer Joe Lynn Turner, formerly of Fandango was recruited and sang over already completed musical tracks. Turner stated that, because of this, he was singing in higher keys than he would do normally (and would do subsequently). "I Surrender" would be the band's highest charting single in the UK, reaching No. 3.
The song "Spotlight Kid" was covered by the German power metal band Angel Dust for their album Border of Reality (1998).
A remastered CD reissue was released in May 1999, with packaging duplicating the original vinyl release and including the bonus track "Jealous Lover". It is the first track written by Turner and Blackmore and was the non-album B-side of the single "Can't Happen Here".