Metformin-Induced Generalized Bullous Fixed-Drug Eruption with a Positive Dechallenge-Rechallenge Test: A Case Report and Literature Review

<div>Postinflammatory hyperpigmentation in generalized fixed-drug eruption. A positive dechallenge phenomenon and subsiding of the bullous formation after the discontinuation of the metformin.</div>

Case Reports in Dermatological Medicine

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Figure 3: Metformin-Induced Generalized Bullous Fixed-Drug Eruption with a Positive Dechallenge-Rechallenge Test: A Case Report and Literature Review 

Figure 3 | Metformin-Induced Generalized Bullous Fixed-Drug Eruption with a Positive Dechallenge-Rechallenge Test: A Case Report and Literature Review 