Publicist Maureen O’Connor says Cole checked out several days ago and is “feeling a lot better.”

The 58-year-old singer entered a New York City hospital September 12 as a result of side effects from her medication and a heavy work schedule.

O’Connor says Cole has been receiving kidney dialysis that isn’t related to her struggle with hepatitis C, a liver disease spread through contact with infected blood.

Cole is the daughter of jazz legend Nat King Cole.