A method, apparatus and kit have been discovered which utilize pulsed odorants, drugs, medicaments, and combinations thereof to treat diseases, symptoms of diseases and the like. In one form, the pulsed odorants, drugs, medicaments, and combinations thereof can be used to regenerate the connections of the neurons of the brain and central nervous system in the treatment of symptoms of such person afflicted with neuro-disorders, such as caused by disease or trauma.