Case report demonstrates refractory bilateral inguinal allergic contact dermatitis from laundry disinfectant residues, highlighting laundry additives as hidden triggers of skin inflammation.
We describe a case of refractory bilateral inguinal allergic contact dermatitis triggered by residual benzalkonium chloride from laundry disinfectant. The diagnosis was confirmed via positive patch testing, and relapse occurred after re-exposure to stored laundered clothing. This case highlights overlooked disinfectant residues as a cause of persistent intertriginous skin inflammation.
No takes yet. Share an insight, caveat, or question.
Pan et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: