Rabeinu discusses the importance of the pidyon nefesh/redemption of the soul, Erich has the capability to sweeten judgements!

Rabeinu teaches us until a pidyon is performed on a sick person, it is forbidden for that person to be healed by doctors/medicine. The reason for this is because it is Heaven who decreed when his healing will take place, by which medicine, and by which person; and it is certain that doctors do not know the intricacies of these judgements being that they are completely Divine.

But by performing a pidyon, we annul the Heavenly judgement, and until a new judgment arises, this sick person can be healed by this doctor and by the medicine he sees fit because there is no decree which obliges this person to be sick for this amount of time anymore…