[English translation]

To remove a fistula in several ways.
Take tartaric acid from a cask, heat it and make fine powder, and an equal amount of long-leaved plantain, that is ribwort, and make fine powder and incorporate them together. Then put some of the powder on a tent and put it on the opening of the fistula. Otherwise make a tent of ribwort leaves and put on some of this powder and treat with this. Alternatively put one powder on and then the other to see which works better. But take care how you live, because these fistulas may come in several kinds. That is, some are warm and some cold and you should know that the cold fistula of gout makes its opening little and minute. To cure them, take ribwort juice and an equal amount of egg white and the best quality rye flour and incorporate everything together in the form of a poultice. Put it on the sore place and let it stay until it comes off by itself. When it comes off, do it again and soon you will be cured. Continue this until you are cured.
If you wish to remove the bad tissue of the fistula, take copper sulfate made into very fine powder and distemper it with butter in the form of an unguent and put it on the fistula. It is said that in 24 hours it will be cleaned up and you will soon be cured. Keep yourself from adverse things.
When you treat the fistula, say this prayer over it with the sign of the cross, viz. '+ Christ conquers, + Christ rules, + Christ orders, + Christ protect you from all evil. God, in his name, may make you well and through his power free you. From the side of our Lord, Jesus Christ, blood and water came out. I implore you, blood and wound from the side and the lance which pierced the side of our Lord, Jesus Christ, may blood not come out. +
Agios + otheos + ischiros + athanatos + eleyson + ymas + sanctus + dominus + sanctus fortis + et sanctus immortalis + thetragramaton + ha filii david miserere.
+ Clean and heal the tissue. Jesus Christ may do it well. In the name of the Father, Son and Holy Spirit, Amen + + +.'

*Prayer against ulcer and fistula.
Viz. 'In the name of the holy indivisible Trinity, Father, Son and Holy Spirit, Amen. He conquers and destroys the root.
Atta, Atta.
I implore you ulcer or fistula, by the omnipotent Father, by the holy Virgin Mary, by Saint John the Baptist and all the saints of God which are in heaven who in the name of Christ stand in the book of life, by the twenty-four elders, by the twenty-four martyrs who in the name of Christ have suffered, by the cherubim and serafim who daily before God incessantly proclaim, saying holy, holy Lord God,
Sabaot,
king and Lord God, Father of our Lord, Jesus Christ. This is as true as the heavens are firm. All power is God's. Dry up ulcer or fistula or mark which is in this servant of God. Lord, holy Father, omnipotent eternal God who made heaven and earth and placed them in the orbit of heaven. The Lord is King of kings. I beg that this ulcer or fistula or mark dry up. Merciful Lord, heal your servant as you healed Christ, the Son of God, who suffered through you. Holy angels and archangels of God, patriarachs and prophets, apostles, martyrs, confessors, virgins and all the saints of God, remove all tribulation and pain of ulcers, fistulas and marks, through Christ, our Lord, Amen. I implore you, ulcer or fistula, by the Father, Son and Holy Spirit, Amen, by the dread day of judgment, by the four evengelists, by the twelve apostles, by the twelve prophets, by the twenty-four elders who daily praise and adore the Lord, by the ruler of the world, our Lord, Jesus Christ, Son of God who was crucified on the holy cross for our sins. I implore you by the blessed Christopher to whom God gave the power to heal ulcer or fistula, and I implore you by the blessed Blasium, by the blessed Claudius who has the power to cure this infirmity. By those I implore you that the ulcer or fistula does not have power over him or her. Amen. Father, Son and Holy Spirit, Amen.' Say this prayer. 'Let us pray. Omnipotent, everlasting Lord, eternal health is belief in you. Hear me for your servant for your mercy. Father of our Lord, Jesus Christ, the Son who lives with you, we implore you to return him to health soon.' Then say the Pater Noster. 'Free your servant from ulcer or fistula and all illness. Be well. Be well. Be well. So be it. So be it. So be it. Amen. So be it through the grace of God.' Say this 3 times and it will be cured quickly.

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[Italian transcript]

A mazare la fistula in piu modi.
Rx. tartara di botte brusalo e fane polvere sutila et dela piantagine longa, id est lanzola, et ne farai sutila, ana, et incorpora insieme. Poi meterai dela ditta polvere sopra ale taste et metti drento inele buche dela fistula. Overamente farai la tasta dela ditta foglia lanzola et metti sopra dela ditta polvere et medica con essa. Overamente metterai una polvere e poi l’altra per vedere quala e quella che opera meglio. Pero conservandoti dal vivere perche dele ditte fistole iene di piu sorte, cioe alcune ne sono calide e alcune frigide et sapi che la gotta fistula frigida fa li suoi buchi piccoli e minuti. Et per farla guarire, torai suco di lanzola e albume d’ovo, ana, e fiore di farina di segale et ogni cosa incorpora insieme a modo di uno impiastro. Et mettilo sopra’l male et lasselo stare finche dasse si spicha, poi iene riffarai un altro et presto guarirai et continua questo finche sei guarito.
Et se tu vorai mortificare la ditta fistula, torai vitriolo romano fatto in polvere sutilissima et la distempera con buttiro a modo di unguento et mettilo sun la fistula. Et in 24 ore si dico che ella sera mortificata e presto tu ne guarirai. Et conservati dele cose contrarie.
Et sopra li dirai questa oratione quando la medichi col segno di + et col pater noster, vz., ‘+ Christus vincit, + Christus regnat, + Christus imperat,+ Christus ab omni malo te defendat. Deus in nomine suo salvum te faciat et in virtute tua libera te. A latere domini nostri, yehsu christi exivit sanguis et aqua. Coniuro te sanguis et vulnus per latus et lanceam in qua fuit perforatus latus domini nostri, yehsu christi, ne exeat sanguis neque extinguatur. + Agios + otheos + ischiros + athanathos + eleyson + ymas + sanctus + dominus + sanctus fortis + et sanctus immortalis + thetragramaton + ha filii david miserere. + Et purgare et saldare le facia, yehsu christo che ben lo po fare. In nomine patris et filii et spiritus sancti, amen.’ +++
Oratione contra al cancro et ala fistula, vz.
‘In nomine sancte hac individue trinitatis , patris + filii et spiritus sancti, amen. + . Vincit leo de tribuiuda radix davit atta atta. Coniuro te chancrum ut fistulam per dominum patrem omnipotatem, per sanctam mariam virgine, per sanctum jonem baptistam et omnes sanctos et sanctas dei qui in celo sunt. Et quorum nomina sunt in libro vite et per viginti quatuor seniores et per viginti quatuor martires qui christi nomina passi sunt et per cherubim et serafim qui cotidie ante deum incessanter clamant dicentes sanctu sanctus. Dominus deus sabaot rex et domine deus meus et pater domini nostri yehsu christi civi vero celi firmati sunt et omnes potestates subiecte sunt deus. Extingue chancrum istum ut fistulam ut guttas que sunt in tali famulo ut famula dei, Domine sanctem pater omnipotens eterne deus qui fecisti celum e terram et quecumque celi ambitu continetur tua sunt. Rex reghum est dominus dominatium te supliciter deprecor ut sicces hunc chancrum ut fistulam ut guttam. Domine miserere famulo ut famulam tue A talis sanet te christus filius dei qui per te passus est sanent te sancti angeli et archangeli dei patriarce et prophete aposotli, martires, confessores, virgines et omnes sancti et sancte dei ab omni trebulatione et dolore chancri ut fistule ut gutte per christum dominum nostrum, amen. Coniuro cancrum ut fistulam per patrem et filium et spiritum sanctum amen. Per tremendum diem judicii, per quatuor evangelistas, per duodecim apostolos, per duodecim prophetas, per viginti quatuor seniores qui tota dio cum laudibus Dominum adorant, per redemtorem mundi Dominum nostrum, yehsum christum, filium dei qui propeccatis nostris in crucis sanctam dignatus est suspendi per ippsum te adjuro et per beatum christopherem cui dedit deus Potestatem sanare cancrum ut fistulas et per eum te adjuro et per beatum blasium et per beatum claudium qui abet potestatem curare hanc infirmitatem et per ippsas. Te adiuro cancrum ut fistulam ut non abeat licentiam super eum ut eam stare, amen. [In nomine] patris et filii et spiritus sancti, amen.’ Et li dirai la sua oratione. Oremus. ‘Omnipotens sempiterne deus salus eternum omnium in te credentium exaudi me pro famulo ut famulam tuam proquo vel qua misericordiam tuam. Imploramus ausilium ut reddat tibi sonitate tibi gratiarum ubi que per dominum nostrum yehsum christum filium tuum qui te con vivit.’ Deinde dicas, ‘Pater noster totum sed libera famulum ut famulam, tuom ut tuam, de chancro ut fistule et omni malo, valeat, valeat, valeat, fiat, fiat, fiat. Amen. [In nomine] patris et filii et spiritus sancti, amen.’ Et cossi sia per grati di dio e presto guarira di la 3 volti.