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Related Experiment Video

Updated: May 16, 2026

Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain

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Published on: June 23, 2009

Two contrasting post-zoster dermatomal phenomena.

Sheikh Javeed Sultan¹, Farah Sameem

¹Department of Dermatology, SKIMS Medical College, Srinagar, Kashmir, India. sjsultan@gmail.com

|November 21, 2012

Summary

This summary is machine-generated.

This study presents two cases: one of psoriasis following herpes zoster and another of ampicillin-induced drug dermatitis. Both conditions presented with distinct skin eruptions, highlighting the importance of accurate diagnosis and treatment.

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Area of Science:

Dermatology
Immunology

Background:

Herpes zoster (shingles) can sometimes be followed by other dermatological conditions.
Drug reactions, such as ampicillin-induced dermatitis, can mimic other skin conditions.

Observation:

A patient developed scaly, pruritic plaques in a dermatomal pattern post-herpes zoster, diagnosed as psoriasis.
Another patient presented with fever, arthralgia, and a generalized erythematous dermatitis after ampicillin use, diagnosed as drug-induced dermatitis.

Findings:

Histopathology confirmed psoriasis in the first case with a positive Auspitz sign.
The second case showed eosinophilia and interface dermatitis, consistent with ampicillin-induced drug dermatitis.

Implications:

Dermatomal eruptions post-herpes zoster may indicate underlying psoriasis.
Early identification and cessation of offending drugs are crucial for managing drug-induced dermatitis.