What are psoriasis triggers?
Triggers can include emotional stress, injury to the skin, some types of infection and reactions to certain drugs. Stress can cause psoriasis to flare for the first time or aggravate existing psoriasis. Psoriasis can also be triggered in areas of the skin that have been injured or traumatized. This is known as the “Koebner phenomenon.” Vaccinations, sunburns and scratches can all trigger a Koebner response. The Koebner response can be treated if it is caught early enough. Certain medications, like antimalarial drugs, lithium and certain beta-blockers, are also known to cause people’s psoriasis to flare. Other triggers may include weather, diet and allergies. Triggers will vary from person to person and what may cause one person’s psoriasis to flare may produce no reaction in another individual.
