Kevin Lee

Despite being a fairly common problem, with an estimated prevalence of 0.5–5%, chronic spontaneous urticaria (CSU) is often a challenging condition for health-care providers to diagnose and for patients to accept as a diagnosis. A diagnosis of CSU does not equate to a diagnosis of a systemic autoimmune disease. We do not routinely recommend dietary modification for CSU. We advise patients with CSU to limit alcohol intake and to take a higher dose of antihistamines prior to receiving vaccinations.