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.