WTVD-TV has not been able to confirm the case of flesh-eating bacteria, or if there is a link between the victim's ailment and waters at Myrtle Beach.
The victim's daughter's Facebook post has been shared over 45,000 times.
She wrote the following on Facebook:
"All prayer warriors: Please remember my Mama ------ in prayer. She was airlifted to Chapel Hill earlier today. She's now in ICU, heavily sedated, and on a breathing machine. However, she is stable! She came in contact with a life threating flesh eating bacteria after putting her feet in the water at Myrtle Beach! Surgery is the only option until it is completely cut away from her long! With the hopes of it not spreading. She is in need of special prayer!"
WTVD-TV has redacted the victim's name at the request of the family.
The victim's granddaughter tells ABC11 in a phone interview that her grandmother was taken to Southeastern Regional Medical Center on Saturday and airlifted to UNC Hospitals.
She said her grandmother lost control of her blood pressure, the blisters on her leg growing worse.
The granddaughter said it happened after her grandmother scraped her leg on a chair on her hotel balcony, then got into the water later that day at Myrtle Beach near the boardwalk, between 27th and 23rd street.
WTVD-TV reached out to the City of Myrtle Beach. Public inform director, Mark Kruea said the city tests the water twice a week and have received "excellent results," and "no complaints or concerns."
Kruea said they have reached out to the family for more information around the time and place and details surrounding the victim's whereabouts at Myrtle beach, but are "not clear" on that information.