This massage head includes a housing, having two active members emerging from the lower surface thereof, having its free lower edge, opposite to the housing, intended to be in contact with a patient's skin. One at least of said active members is formed of a flap hinged within the housing and capable of being pivoted to bring the lower edges of said active members closer to each other or draw them away from each other, the relative displacement of said at least one flap being ensured by means of a rotary cam formed within the housing, the rotation axis of the cam being oriented substantially parallel to the displacement direction of said at least one flap. The cam includes at least one cam track formed on its periphery, intended to cooperate with the flap support(s), having one or their ends hinged in the housing.