Sweetin, 31, is best known for her role on the family sitcom "Full House." She is now the mother of two children and works as a clinical logistics coordinator at a Los Angeles rehab center, E! News said.
Sweetin told TMZ speculation she has suffered a relapse and is again undergoing treatment for drug addiction is "such bull [expletive.]"
"I am absolutely not in rehab," she said.
"I work for the center and they have been really generous in helping me with a place to stay as Morty [Coyle] wanted me out by the end of the month," she said of her estranged husband, whom she is in the process of divorcing. "The owners of the facility said I could stay here as I got things figured out."
Sweetin previously said she has been clean and sober since 2008.