The utility model relates to an applicator device (1) for topical occasionally local. The applicator device comprises a container (11) made of transparent plastic material, which is open on one side and having a shaped edge (13) intended to be turned towards the patient's body during the use of the applicator device. A wall (150) of the container comprises a hole (15) may be coupled to an operational manner to a duct for conveying a gas into said container (11). The applicator device (1) comprises a sealing element perimeter (14) which can be coupled to an operational manner with the edge section member (13) of said container (11) and intended to come into contact with the body of the patient during the use of the applicator device (1).