Dairy animals have been milked since prehistory. Because these dairy animals are often kept in confined areas the teat areas of these animals are often contaminated with bacteria. This invention is concerned with a process for sanitizing these contaminated teat areas by treating these areas with a solution of Chloramine T. The preferred solutions for sanitizing the teat areas have concentrations of from about 0.005 to about 1 weight percent. Treating solutions for use in this invention may further incorporate a coloring agents, wetting agent, surfactants, healing agents, dyes, thickening agents, skin conditioning agents, softeners etc. The process of this invention is fast acting and is effective against a wide spectrum of bacteria. After treatment the teat area of the dairy animal being milked is bacteria free and hence bacterial contamination of the milk, and Mastitis infections are eliminated.