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What triggers a psoriasis flare?

Many environmental and lifestyle factors may trigger psoriasis flares. Not everyone with psoriasis has the same triggers. Common triggers are:

  • sun exposure
  • smoking
  • infections
  • skin trauma, such as cuts, bug bites, and burns
  • stress
  • exposure to cold temperatures
  • certain medications, such as lithium, blood pressure medications, and iodides
  • heavy alcohol use

Smoking isn’t just a psoriasis trigger. It may also be involved in its development and increase the severity of the disease.

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