BACKGROUND Lichen planus is a common skin disorder of unknown etiology. Most cases are idiopathic, but substances such as gold, antimalarials, penicillamine, thiazide diuretics, β-blockers, arsenic and nonsteroidal anti-inflammatory drugs have been implicated as trigger factors. CASE PRESENTATION We report the case of a lichenoid eruption in a male drug addict who administered oral heroin (di...

Psoriasiform drug eruptions are very rare and generally characterized as erythematous, thick, dry, squamous, and demarcated plaques, resembling those of idiopathic psoriasis (1). Drugs may result in the exacerbation of pre-existing psoriasis or initiation of de novo psoriatic lesions (2). Apixaban, a reversible direct inhibitor factor Xa, is a novel anticoagulant, and its side effects mainly in...

Fixed drug eruption is an uncommon adverse drug reaction caused by delayed cell-mediated hypersensitivity. Levocetirizine is an active (R)-enatiomer of cetirizine and there have been a few reports of fixed drug eruption related to these antihistamines. We experienced a case of levocetirizine-induced fixed drug eruption and cross-reaction with other piperazine derivatives confirmed by patch test...

ibuprofen was positive in a residual lesion, while patch test with the same drug was negative in upper back. We were curious to know if our patient was sensitised to the rest of the propionic acid group, but due to the small area affected skin, we could not test these additional drugs. Therefore all propionic acid group drugs were forbidden. The patient tolerated acetylsalicylic acid, and then ...

Background: Fixed drug eruption (FDE) is an uncommon adverse reaction to medications. Mucosal areas, particularly the male genitalia, are favored sites. To our knowledge, no study has investigated the causative agent(s) in FDE occurring on male genitals of Iranian patients. So, we conducted a study to determine the most common agents and areas of involvement in fixed genital drug eruption of ma...

Drug eruption is a major problem of adverse drug reactions and may present as variform clinical manifestations. Toxic epidermal necrolysis (TEN) and acute generalized exanthematous pustulosis (AGEP) are relatively rare severe drug eruptions. It has rarely been reported that AGEP overlaps or mimics TEN, while no purulent bullous epidermal necrolysis has been reported. The present study reports a...

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