In an interview with the Associated Press, Salahi said she plans to put the dress up for bid around the time the scandal is addressed in "The Real Housewives of D.C."
There's no airdate yet for the episode. Salahi said the auction proceeds will go to victims of the Haitian earthquake and people with multiple sclerosis.
Salahi is one of five women starring in the series that premieres Thursday night on Bravo.
Much of the first episode features the other four housewives criticizing Salahi behind her back for being too skinny and allegedly not paying her bills.
Salahi said watching the episode hurt for "a minute," but she got over it.