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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Patient will usually reveal a history of contact with an allergen (1).

Symptoms generally occur 1-2 days after exposure, but may also appear from several hours to several days post-exposure (1)

  • acute / early stages - pruritus, erythema, dryness, and scaling, but vesicles and bullae can develop
  • chronic stages - dryness, scaling, fissuring

Areas where skin is thinnest often affected first eg. around eyes before the rest of the face; back of hands and web spaces before palms.

If a topical product is the cause (e.g., medicines, cosmetics, adhesive tape), reactions usually have a well demarcated border (2).

Skin changes often subside gradually within 2-3 weeks after elicitation (3).

Reference:

  1. Rashid RS, Shim TN. Contact dermatitis. BMJ. 2016;353:i3299.
  2. Usatine RP, Riojas M. Diagnosis and management of contact dermatitis. Am Fam Physician. 2010;82(3):249-55.
  3. Astner S et al. Non-invasive evaluation of the kinetics of allergic and irritant contact dermatitis. J Invest Dermatol 2005; 124:351-359

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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