By Julie Gordon

“Gossip Girl” actress Taylor Momsen is recovering from a potentially life-threatening throat infection after being released from Los Angeles hospital yesterday.

The 15-year-old Momsen, who plays Jenny Humphrey on the CW11 show, was admitted to the Cedars-Sinai Medical Center on Sunday.

“She has been an excellent patient, and after aggressive antibiotics and medications, she is expected to make a full recovery in the next three to five days,” said Shawn S. Nasseri, Momsen's doctor.

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Momsen was in L.A. for a school exam, and plans to return to New York, where “Gossip Girl” is shot, with her mother this week, according to Us magazine, which first reported the news.

“She’s in unbelievable spirits,” a source told Us.