Compact atomizer Fig.1(1.1), suitable for use in the nose, consisting of U-shaped body Fig.3(3.1) Fig.5, with a cavity Fig.6 (6.5) for absorbing porous active substance storage Fig.4 (4.5) and/or reservoir for active substances where one end Fig.2 (2.4), Fig.3 (3.1) of the atomizer can be introduced in the nostril, and it has a cavity (6,5) inside the atomizer (1.1) and the other end is designed as a clamping element Fig.3 (3.4), Fig.4 (4.7)