Smear: NKT Teachers advise against taking conventional medicine
Truth: This is untrue. NKT Teachers are not qualified medical practitioners so they cannot advise their students on whether to take medication or not. In all cases, an NKT Teacher should advise a student who is sick to consult their doctor. Geshe Kelsang himself has on innumerable occasions advised his students to follow the advice of their doctors.
In Eight Steps to Happiness Geshe Kelsang says:
There is no point in our enduring suffering needlessly, such as by refusing to accept medical help when we are seriously ill. We may think 'As a Lojong (training the mind) practitioner, I can solve all my problems through my inner strength alone'; but in fact by refusing help we are breaking the Lojong commitment to 'Remain natural while changing your aspiration'. According to the Kadampa Tradition of Je Tsongkhapa, even if we have high realizations we should observe the conventions of ordinary society. Since it is customary to accept medical treatment when we are sick, we should not attract undue attention to ourself by refusing it if it can help us, even if we are mentally strong enough to bear the pain unaided. Je Tsongkhapa's tradition of outwardly remaining like an ordinary person whilst inwardly cultivating special minds is very practical and beautiful.