aro·ma·ther·a·py
 /əˌroʊməˈθerəpi/  noun   [  noncount  ]
  : the use of natural oils that have a pleasant smell to make a person feel better especially by rubbing the oils into the skin
  aro·ma·ther·a·pist /əˌroʊməˈθerəpıst/  noun  ,  pl   -pists [  count  ]