Decades ago, psoriasis was thought to be driven by the keratinocytes in the epidermis. The discovery that immune cells mediated the disease explained the efficacy of immunosuppressive therapies ...

Culprit vaccines include: Experts agree that COVID-19 vaccination is safe for all people, including people with psoriasis. This includes people who take immunosuppressive therapy for their disease.

Individuals on immunosuppressants should discontinue them prior to patch testing, if at all possible, to avoid tarnishing the test results, according to updated guidelines from the North American ...