You're more likely to get shingles again if:
You had severe pain from shingles that lasted more than 30 days. This is called post-herpetic neuralgia (PHN).
You are a woman.
You were age 50 or older when you had shingles the first time.
Your immune system is weak from conditions like leukemia, lymphoma, or HIV, or you take medicines that suppress your immune system.