Nevertheless, after their death in the town of Fereman, they were buried together according to a revelation from God. The holy brothers were great miracle-workers both during their life and after their death. A snake crawled through the mouth and into the stomach of a certain farm laborer during his sleep, and the unfortunate man would have died in the greatest pain had he not, in the last moment, invoked the help of Saints Cosmas and Damian. Thus, the Lord glorified forever the miracle-working of those who glorified Him on earth by their faith, purity and mercy."
(taken from: http://www.westsrbdio.org/prolog/prolog.htm)
The Church glorifies the miracle-working physicians,
Placing all their hope in heaven, the Saints treasured up for themselves an inviolable treasure; freely they received, freely they give remedies to the sick; in accordance with the Gospel they possessed neither gold nor silver; their kind deeds they shared out to humans and beasts alike; that being in all things obedient to Christ they might intercede with confidence on behalf of our souls.
Apolytikion. Tone 8.
Holy Unmercenaries and Wonderworkers, visit our weaknesses; freely you have received, freely give to us.
(from Fr. Ephraim Lash: http://www.anastasis.org.uk/01nov.htm)
Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!