Accidental intradermal injection of formalin – A case report

Formalin solution can be called a “double-edged sword.” Known for its preservative and disinfectant properties, this aqueous chemical is widely used in the medical field. In dermatology, it is useful in preserving the skin tissue specimen for histopathology. However, if not handled with care, it can potentially cause severe dermatitis, first- or second-degree burns, ulcers in some cases, and even cellulitis. We, here, present a rare unfortunate case of an accidental injection of formalin, instead of a local anesthetic, as a test dose, on the forearm of a 28-year-old man at our clinic and its successful management.