The remedy for toothache suggests cauterising the skin behind the ears before heating the plant henbane and leek seeds over hot coals and ensuring the patient inhales the smoke through a funnel.
BBC: Medieval teeth 'better than Baldrick's'
2.
Simple, and safe: for the problem with all tranquillisers up till then, from henbane and absinthe to barbiturates, was that they gave unpleasant side effects at moderate doses and, at larger ones, killed you.