Bites

November 2009

FocusBites

Bed bugs

What the GP needs to know

Volume 38, No.11, November 2009 Pages 880-884

Stephen L Doggett

Richard Russell

Background

Since the mid 1990s, there has been a global resurgence of bed bugs (Cimex spp.), which are blood feeding insects that readily bite humans. Patients suffering with bite reactions are increasingly presenting to medical practitioners.

Objective/s

This article reviews the various clinical consequences of bed bug bites and outlines management strategies.

Discussion

Common dermatological responses include the early development of small macular spots that may later progress into prominent wheals accompanied by intense itching. Patients exposed to numerous bed bugs can present with a widespread erythematous rash or urticaria. Bullous eruptions are not uncommon and anaphylaxis has been reported, albeit rarely. There is no evidence that bed bugs transmit human pathogens, but they are responsible for significant psychological distress, can produce anaemia when abundant, and have been implicated in the triggering of asthmatic reactions. Symptomatic control involves treatment of the patient with antihistamines and corticosteroids, and ensuring that the infestation responsible for the problem is effectively eliminated.

From an early age, the term ‘bed bug’ is indelibly lodged into our psyche, yet as one journalist recently suggested, for most of us, they are just a ‘mythical creature from a childhood nursery rhyme’.1 However, these insects are very much real and since the mid 1990s there has been an unprecedented global bed bug pandemic. Australia has not been excluded and infestations have risen by an incredible 4500% between 2000 and 2006.2

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Correspondence afp@racgp.org.au

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