Dakin's solution

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Dakin's solution is a dilute solution of sodium hypochlorite (0.4% to 0.5%) and other stabilizing ingredients, traditionally used as an antiseptic, e.g. to cleanse wounds in order to prevent infection. The preparation was for a time called also Carrel–Dakin solution or Carrel–Dakin fluid. Carrel and Dakin used a variety of apparatuses to infuse the solution continuously over the wounds. In modern typical usage, the solution is applied to the wound once daily for lightly to moderately exudative wounds, and twice daily for heavily exudative wounds or highly contaminated wounds. The healthy skin surrounding the wound should preferably be protected with a moisture barrier ointment (e.g., petroleum jelly) or skin sealant as needed to prevent irritation. The solution takes the name from British chemist Henry Drysdale Dakin (1880–1952) who developed it in 1916, during World War I, while he was stationed at a field hospital in Compiègne. He worked there in collaboration with French physician Alexis Carrel, and the particular use they made of the solution is known as the Carrel–Dakin method for wound treatment. Sodium hypochlorite solution had been developed as a bleaching agent around 1820 by the French chemist Antoine Labarraque, as a cheaper substitute for Claude Berthollet's potassium hypochlorite solution, produced as Eau de Javel since the late 18th century. Around that time, he also discovered the disinfectant properties of his Eau de Labarraque, which was quickly adopted for that purpose. His work greatly improved medical practice, public health, and the sanitary conditions in hospitals, slaughterhouses, and all industries dealing with animal products.