A teat treatment apparatus comprising a tubular outer housing containing a tubular inner shell. The tubular inner shell includes a side wall defining a teat treatment cavity, including a central side wall portion. An inlet port extends through a side wall of the tubular outer housing and is in fluid communication with an annular cavity formed by the inner side surface of the tubular housing and an upper annular ridge, recessed central side surface, and lower annular ridge of the side wall of the tubular inner shell. Orifices are provided in the central side wall portion of the tubular inner shell. Each of the orifices is in fluid communication with the annular cavity and the treatment cavity, and each of the orifices defines an orifice axis directed at an oblique angle with respect to the central axis of the treatment cavity and downwardly with respect to the treatment cavity plane.
