Nasyam means instillation of medicated oil or ghee through the nasal passage. The excess of toxins accumulated in the throat, nose and head is eliminated. Patient is asked to lie down on his/her back on a wooden cot and then the Nasyam is given. The body, especially head, neck and chest, should be massaged with oil before the procedure. Here are few types of Nasyam: https://ayurvedicvillage.com/nasyam-treatment.php