san·a·tive 
(sănə-tĭv)
(sănə-tĭv)adj.
Having the power to cure; healing or restorative: a sanative environment of mountains and fresh air.
[Middle English sanatif, from Old French, from Late Latin sānātīvus, from Latin sānātus, past participle of sānāre, to heal; see SANATORIUM.]