Over the weekend, Celine Dion was forced to postpone another show due to a recurring naso-pharyngeal infection that was complicated by inflamed vocal chords.

The singer's November 9 concert at Conseco Fieldhouse in Indianapolis, IN, has been rescheduled to December 21 while she recovers. Tickets for the rescheduled November 9 concert will be honored at the new date.

Dion previously rescheduled her October 30 show at the Target Center in Minneapolis, MN, because of the ailment. That show was originally rescheduled to February 5, 2009, and later moved to December 18. Tickets for the February 5 concert will now be honored on December 18, as will tickets for the original October 30 date.

The singer's Montreal physician instructed her to refrain from singing for five days in order to fully recover. Following her doctor's orders, Dion was able to perform at her November 7 concert at Scotiabank Place in Ottawa, ON.

Dion's postponed November 4 concert was rescheduled to December 16.