Flu cases are on the rise across New York state.

There were 7,765 cases statewide of the flu the week ending Nov. 22, according to data from the state.

That’s a 100% increase from the week prior.

In Westchester County, there have been 580 cases of the flu reported last week, compared to 267 the week before.

Dr. Evan Cohen, an emergency medicine doctor with Northern Westchester Hospital, says with Christmas right around the corner, it’s important to get your flu shot.

“It dramatically reduces the chances that we get so sick that we have to come see people like me in the emergency department,” said Cohen.

At Weinstein’s Pharmacy in Katonah, pharmacists tell News 12 they’ve seen an increase in people purchasing over-the-counter medicine and Tamiflu.

"We've been trying to make sure that we keep stock of those to make sure we don't run out,” said Raphael Curaming, a pharmacist technician.

Experts say that while getting the flu shot doesn’t prevent you from getting it, it will lessen the intensity of the virus.