Hydrofluoric acid has widespread uses in industry and at home. Its mec
hanism of toxicity is the basis of a specific treatment. Cutaneous bur
ns are the most common form of toxicity and the consequences can be ca
tastrophic. Its insidious presentation can delay any therapeutic actio
n, except if the physician is aware about it. A case report underlines
the beneficial action of the intra-arterial infusion of calcium gluco
nate.