Do not neglect medical treatment when it is necessary, but leave it off when health has been restored.... Treat disease through diet, by preference, refraining from the use of drugs; and if you find what is required in a single herb, do not resort to a compounded medicament. Abstain from drugs when the health is good, but administer them when necessary.
(Baha’u’llah, cited in J. E. Esslemont, ‘Bahá'u'lláh and the New Era’; The Compilation of Compilations, vol. I, Some Aspects of Health, Healing, Nutrition and Related Matters)
