Introduction
The woman of Canaan (cf. Matthew 15:21-28) allegorically represents the sinner: her sick daughter, in fact, is to be interpreted as the soul of the woman vexed by sin (for the theme of woman as the origin of sin, reference to Sirach 25).
Divisio
Ways to heal the spirit (based on the body healing techniques of the time): 1) By sweat: just as he who wants to perspire materially covers himself in bed and approaches the fire, so he who wants to expel the toxin of sin by the "sweat of contrition" must cover himself in his death-bed and approach the fire, i.e. remember the Judgement and the eternal damnation. Lacrima contritionis = sudor contritionis, by which the soul is healed. Exempla of people whose souls have been healed by the "sweat of contrition": king Hezekiah (reference to 2King 20); Mary Magdalene (reference to Luke 7). 2) By corporaliter minutio, i.e. the bloodletting: just as the bad blood corrupts the body, so the sin corrupts the soul; as in a bloodletting, the vein from which the “bad blood of sin” must be expelled is the mouth of penitent, i.e. during the confession. It must be noted that those who emittunt bonum sanguinem et malum abscondunt, i.e. justify themselves during confession, are not healed but rather make their condition worse; also those who delay the bloodletting/confession take several risks. 3) By fasting: just as he wo wants to to conquer a castle does so by starving it (because “a castle full of foodstuffs is harder to conquest”), so he who wants to heal his soul must fast, because “a soul full of sins is harder to heal” (references to Sirach 37). 4) By incision: just as a diseased limb is removed to prevent it from infecting healthy ones, so one must separate oneself from bad company to avoid being infected. 5) By burning: the word of God is like a fire capable of healing (references to Psalms, Jeremy, Book of Wisdom and Proverbs).