“…2 Hemodialysis patients are relatively anergic, which may reduce the symptoms of contact sensitization and result in isolated pruritus without other eczematous changes. 2 Although initial irritation is often deemed insignificant, it may foreshadow more severe reactions on continued exposure because the risk of sensitization grows with repeated exposure and higher concentrations. 4 In fact, perioperative anaphylaxis due to chlorhexidine has been documented in a patient with unknown chlorhexidine sensitization that occurred years before the anaphylactic event.…”