Case Report: Ofloxacin-induced fixed drug eruption

Abstract

Background Fixed Drug Eruption (FDE) is a rare form of drug-induced dermatoses that appears as well-defined, erythematous patches occurring within hours of medication’s administration with or without blistering and resolves with post-inflammatory residual hyperpigmentation. Case presentation A 50-year-old male patient visited the outpatient department with chief complaints of burning micturition, increased urine frequency, and high-grade fever with chills lasting three days. Blood and urine investigations indicated leukocytosis and remnants of pus cells, respectively, confirming the diagnosis of urinary tract infection intervened with a tablet ofloxacin. Two hours after drug consumption, intense itching was noticed over the body, which soon progressed to blackening discoloration; blisters developed with a burning sensation over the webs of the palm and on the arm, with hyperpigmentation of the lower lip. Furthermore, painful patches with serous discharge developed in the oral cavity and penile tip. He had encountered a similar episode seven years before, which confirmed the diagnosis of fixed drug eruption (FDE). Immediate treatment included injectable steroids, antihistamines, cephalosporin antibiotics, and intravenous fluids with discontinuation of the ofloxacin drug. He adhered well to the treatment and had a remarkable improvement after 72 hours with residual hyperpigmentation, following which, the patient was advised to avoid similar medicine in the future to prevent a recurrence. Conclusions This case report concludes that the adverse drug reactions should be considered mandatorily with antibiotic audits on a regular basis to ensure that the course of treatment is appropriate and adequate, and any inappropriate reaction should be reported immediately. The rationality of the treatment and inappropriate prescriptions must be reported.