The invention relates to a device designed for administering a substance, in particular a medicine, to a part of a human or animal body, comprising a housing provided with a reservoir for holding a certain amount of substance. A drawback of such a dispensing device is that the user often has little or no experience in using such a dispensing device in a correct way. Consider in this connection self-medication by administering a particular, read medically desired, amount to an eye, mouth, nose, ear or another part of the body of a human or an animal. Another drawback is the fact that contagion and contamination of the substance via the dispensing opening frequently occurs with the known dispensing device, which is not conducive to the healing process of the affected body part (for example an eye, mouth, nose or ear). The object of the invention is to provide an improved dispensing device, and in order to achieve that object the reservoir comprises a dispensing opening - which is closed in the inactive state - for dispensing the substance from the reservoir, as well as dispensing means for dispensing - in use - an amount of substance via the dispensing opening whilst simultaneously releasing the dispensing opening temporarily.La présente invention concerne un dispositif conçu en vue de l'administration d'une substance et, notamment, d'un médicament, en direction d'une partie d'un organisme humain ou animal, ledit dispositif comprenant un boîtier équipé d'un réservoir destiné à contenir une certaine quantité de substance. L'un des inconvénients d'un tel dispositif distributeur est que l'utilisateur n'a que peu ou pas d'expérience en matière de bonne utilisation d'un tel dispositif distributeur. Pensez à cet égard à l'auto-médication impliquant l'administration d'une quantité donnée d'une substance souhaitée d'un point de vue médical au niveau de l'œil, de la bouche, du nez, de l'oreille ou d'une autre partie de l'organisme d'un être humain ou d'un animal. Un autre inco