It is no sin for you that ye seek the bounty of your Lord (by trading). But, when ye press on in the multitude from 'Arafat, remember Allah by the sacred monument. Remember Him as He hath guided you, although before ye were of those astray.
Times are computed by method; your mosque's timetable governs the adhan. Every text carries its source and grade. Nothing here is a fatwa, a prediction, or a substitute for a doctor: your own scholar decides what is contested, and the tradition itself says the practice is alongside treatment, never instead of it.