(NBC/KAIT) - The shingles vaccine is in high demand, and some patients in Texas had trouble finding it.
Shingles is caused by the same virus that causes chickenpox, however, shingles can very painful.
According to doctors, it's a condition where the nerve gets infected by the virus all over again.
It becomes inflamed, and it's been described as extremely horrific pain.
Dr. Stewart Master at Methodist Dallas recommended people age 50 and up get the shingles vaccines.
He said the risk for shingles increases with age.
The CDC updated its recommendations in 2017 by lowering the recommended age to 50.
"So with that recommendation change there's actually been reports of shortages," said Dr. Master.
According to vaccine maker Glaxo Kline Smith, there was an unprecedented level of demand for the vaccine Shingrix.
The vaccine maker said it's shipping out large volumes of Shingrix, every two to three weeks.
They plan to continue the trend through 2018.
Symptoms of shingles include a painful red blister, fatigue or itching.