A nozzle, comprises an elongated hollow lance configured for feeding a coating agent through the lance along a longitudinal axis of the lance and at least one nozzle opening configured for dispensing the coating agent. The nozzle opening is arranged in a lateral surface of the lance and dispenses the coating agent sideways with respect to the longitudinal axis of the lance. The nozzle opening is rotatable about the longitudinal axis of the lance such that the coating agent can be dispensed in differenct directions according to an angular position of the nozzle opening.