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Goat, located in Fiesch, Valais (Switzerland). Source: Armin Kübelbeck via Wikimedia Commons.

How to smell nice: Galen's advice for doctors

December 25, 2025 by Sean Coughlin in Ancient Medicine

The last part of Galen’s comment on Epid. 6.4.7, here on smell, including advice on how to use deodorants and breath fresheners — and a nice Quintus’ story as well.


Odour. Some people naturally have an unpleasant smell, whether of the body as a whole or of the mouth, while others are naturally free of it. In other cases it arises from carelessness, when doctors think they are doing nothing wrong even if they go to see patients reeking of garlic or onions. Something like this actually happened to Quintus, who practiced medicine in Rome in our fathers’ day. After lunch he went to visit a wealthy and very influential man smelling strongly of wine. The patient was running a fairly high fever, with headaches as well, and so could not tolerate the smell coming from the wine. He asked Quintus to stand a little farther away, since he was distressed by the strong smell of wine. In saying this the patient seemed to be speaking reasonably enough. But Quintus handled it clumsily and told him to endure the smell. He said that he himself put up with the stench of the patient’s fever, and that it was hardly the same thing to smell a fever as to smell wine.

I also know of another doctor in our part of Asia whose armpits were foul-smelling, to the point that no sick person could bear his presence, or any healthy person either. He ought first to have treated this condition in himself, and only then attempted to treat others. For even if the smell is congenital, as it is in goats, it is still possible to make it milder, and then to reduce it further each day by using powders that blunt bad odours. At any rate, there was one man whose mouth was naturally foul, who took care to make it more moderate by cleansing and by taking suitable medicines for this purpose, and who each day took a very small amount of something aromatic, sometimes amomum, sometimes a leaf of malabathrum, sometimes some other fragrant substance, and in this way would leave the house.

ὀδμή. καὶ τῆς ὀδμῆς τοῦ σώματος ὅλου καὶ τοῦ στόματος ἡ μέν τίς ἐστιν ἐνίοις φύσει μοχθηρά, καθάπερ γε καὶ ἄλλοις τισὶν ἄμεμπτος, ἡ δ' ἐξ ἀμελείας ἐγγίνεται μηδὲν ἡγουμένων ἁμαρτάνειν τῶν ἰατρῶν, ἐὰν ἤτοι σκορόδων ἢ κρομύων ὄζοντες ἐπισκοπῶνται τοὺς νοσοῦντας. ἐπὶ δὲ Κοΐντου τοῦ κατὰ τοὺς πατέρας ἡμῶν ἰατρεύοντος ἐν Ῥώμῃ καὶ τοιοῦτό τι συνέβη· μετ' ἄριστον ἐπεσκέπτετό τινα τῶν πλουσίων τε καὶ πολὺ δυναμένων ἀνδρῶν ὄζων οἴνου σφοδρῶς. πυρέττων οὖν ἱκανῶς ὁ κάμνων ἅμα κεφαλαλγίαις καὶ διὰ τοῦτο μὴ φέρων τὴν ἐκ τοῦ οἴνου προσπίπτουσαν ὀσμὴν ἠξίου προσωτέρω χωρήσειν τὸν Κόϊντον, ἀνιᾶν γὰρ αὐτὸν ἐξόζοντα σφοδρῶς οἴνου. ταῦτα μὲν οὖν ὁ κάμνων ἐφαίνετο μετρίως λέγειν· ὁ Κόϊντος δ' ἀβελτέρως αὐτῷ προσενεχθεὶς ἐκέλευσεν ἀνέχεσθαι τῆς ὀσμῆς. καὶ γὰρ ἑαυτὸν ἔφη τοῦ κάμνοντος ἀνέχεσθαι πυρετοῦ ὄζοντος, εἶναι δ' οὐκ ἴσον ἢ πυρετὸν ἢ οἶνον ὀσμᾶσθαι.

ἕτερον δ' ἰατρὸν ἐπὶ τῆς ἡμετέρας Ἀσίας οἶδα δυσώδεις ἔχοντα τὰς μάλας, ὡς διὰ τοῦτο μὴ φέρειν αὐτοῦ τὴν εἴσοδον ἄνθρωπον νοσοῦντα μηδένα καθάρειον. ἐχρῆν οὖν αὐτὸν ἑαυτοῦ πρῶτον ἰᾶσθαι τὸ σύμπτωμα καὶ οὕτως ἐπιχειρεῖν ἑτέρους θεραπεύειν. ἐγχωρεῖ γάρ, εἰ καὶ σύμφυτον ὥσπερ καὶ τοῖς τράγοις ἐστίν, ἀλλά τοι μετριώτερόν γ' αὐτὸ ποιήσαντα τὸ μέτριον αὖθις τοῦτο πραΰνειν ἑκάστης ἡμέρας διαπάσμασιν ἀμβλυντικοῖς δυσωδίας. ἄλλος γοῦν τις ἔχων δυσῶδες φύσει τὸ στόμα προὐνοήσατο μετριώτερον αὐτὸ ποιήσασθαι διά τε καθάρσεως καὶ φαρμάκων πόσεως ἐπιτηδείων εἰς τοῦτο, καὶ καθ' ἑκάστην ἡμέραν ὀλίγιστόν τι λαμβάνων εἰς αὐτὸ ποτὲ μὲν ἀμώμου, ποτὲ δὲ μαλαβάθρου φύλλου, ποτὲ δ' ἄλλου τινὸς τῶν εὐωδῶν οὕτως ἐκ τῆς οἰκίας προήρχετο.

Galen, Commentary on Epidemics VI on Epidemics VI 4.10, 17B.151-152K = 206-207 Wenkebach

December 25, 2025 /Sean Coughlin
Galen, garlic, onions, Epidemics, Hippocratic Commentary, bedside manner
Ancient Medicine
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Ptolemaic mosaic from Hellenistic Egypt, 200 - 150 BCE. Via wikimedia commons.

Soda and onions

Humboldt-Universitaet zu Berlin
February 28, 2018 by Sean Coughlin in Botany, Ancient Medicine, Philosophy

Continuing with Aetius of Amida's pharmacy and its parallels: onions.

Philumenus on onions as a cure for bites of all kinds.

"For dog bites or people bites, apply a poultice of fine salt mixed with honey until the bite is filled. Some also add onion and vinegar and then use it."

πρὸς οὖν κυνόδηκτα καὶ ἀνθρωπόδηκτα ἅλας λεῖον σὺν μέλιτι κατάπλασσε, ἄχρις οὗ πλήρη ᾖ. τινὲς δὲ καὶ κρόμμυον προσμίσγουσιν καὶ ὄξους καὶ οὕτως χρῶνται.

Philumenus, On poisonous animals and their remedies [De venenatis animalibus eorumque remediis], 5.6 (10,7-9 Wellman)

Galen on onions.

"The onion belongs to the fourth degree of things that heat. Its substance is composed of rather large particles, which is why it also opens up hemorrhoids when it is applied; when used full strength with vinegar in the sun, it washes away skin lesions; and when rubbed on bald spots, it stimulates the hair faster than alcuonium. If one separates off its juice, whatever remains is a considerably earthy, hot substance, but the juice itself is a watery and airy hot substance. Thus, when it is used as a salve against thick humours, it benefits cataract sufferers and those who are short-sighted. Due to its mixture, the onion generally causes flatulence when eaten, and for this reason, those which are drier in their mixture cause less flatulence."

Κρόμμυον ἐκ τῆς τετάρτης ἐστὶ τάξεως τῶν θερμαινόντων. ἡ δ' οὐσία παχυμερής ἐστιν αὐτοῦ μᾶλλον, ὅθεν καὶ τὰς αἱμοῤῥοΐδας ἀναστομοῖ προστιθέμενον καὶ σὺν ὄξει καταχριόμενον ἐν ἡλίῳ τοὺς ἀλφοὺς ἀποῤῥύπτει καὶ παρατριβόμενον ἀλωπεκίαις θᾶττον ἀλκυονίου παρορμᾷ τὰς τρίχας. εἰ δ' ἀποχωρίσειεν αὐτοῦ τις τὸν χυλὸν, ὅσον μὲν ὑπόλοιπον ἱκανῶς ἐστι γεώδους οὐσίας θερμῆς, αὐτὸς δ' ὁ χυλὸς ὑδατώδους τε καὶ ἀερώδους θερμότητος. οὕτω οὖν καὶ τοὺς ὑποχεομένους καὶ ἀμβλυώττοντας ἐπὶ πάχει χυμῶν ὀνίνησιν ὑπαλειφόμενος. ἐκ δὲ τῆς τούτου κράσεως ὅλον τὸ κρόμμυον φυσῶδές ἐστιν ἐσθιόμενον, καὶ διὰ τοῦτο ὅσα ξηρότερα τὴν κρᾶσιν ἀφυσότερα.

Galen, On the mixtures and capacities of simple drugs, 7.58 (XII 48-49 Kühn)

Oribasius' concise summary.

"Onion belongs to the fourth rank of things that heat. Its substance is composed of thick particles."

Κρόμμυον ἐκ τῆς τετάρτης ἐστὶ τάξεως τῶν θερμαινόντων· ἡ δὲ οὐσία παχυμερής ἐστιν.

Oribasius, Collectiones medicae, 15.1.10.79 (260,26-28 Raeder)

Aetius' entry based on Galen.

"Onion belongs to the fourth degree of things that heat. Its substance is composed of very large particles, whence it also opens up hemorrhoids when it is applied; when used full strength with vinegar in the sun, it washes away skin lesions; and when rubbed on bald spots, it stimulates the hair faster than alcuonium. When eaten, it heats the body with its acridity and thins thick and sticky humours in it. It fills the abdomen with air because its substance is composed of very thick particles."

Κρόμυον ἐκ τῆς τετάρτης ἐστὶ τάξεως τῶν θερμαινόντων· ἡ δὲ οὐσία αὐτοῦ παχυμερὴς μᾶλλον, ὅθεν καὶ τὰς αἱμορροίδας ἀναστομοῖ προστιθέμενον καὶ σὺν ὄξει καταχριόμενον ἐν ἡλίῳ τοὺς ἀλφοὺς ἀπορρύπτει καὶ παρατριβόμενον ἀλωπεκίαις θᾶττον ἀλκυονίου παρορμᾷ τὰς τρίχας. ἐσθιόμενον δὲ θερμαίνει μὲν τὸ σῶμα τῇ δριμύτητι καὶ λεπτύνει τοὺς ἐν αὐτῷ παχεῖς καὶ γλίσχρους χυμούς· ἐμπνευματοῖ δὲ τὴν γαστέρα διὰ τὸ παχυμερὲς τῆς οὐσίας.

Aetius of Amida, Libri medicinales, I 232 (97,14-20 Olivieri)

Cf. Dioscorides, De materia medica, 2.151 (p.155 in Beck), which mentions many of the other uses of onions as well, adding to what is said above that it's useful for blisters on the feet (when it is mixed with chicken fat, hardness of hearing, sore throats, and stuffy noses, but that it causes headaches. He leaves out the part about people bites. Oddly, none of these passages mention the fact that onions make your cry, a fact that Aristotle's school was rather interested in:

(pseudo-)Aristotle on why onions cause tears, while garlic does not.

"Why is it that only onions cause the eyes to sting so excessively? People even say it got its name because of this, since [κρόμμυον] makes the pupil close [τὴν κόρην συμμύειν]. Marjoram doesn't, nor do other things which are acrid. Thus, watercress [lit. "up the nose"], because it is hotter, causes more drying than the colliquescence that it produces, since it produces tears in those who eat it; it does not, however, [produce tears] when it is brought close by, because it does not give off any thin vapour, for it is too dry and hot. Marjoram and similar hot things are dry and mild, but what is going to produce tears needs to be stinging, moist and sticky. For this reason, olive oil produces tears, although its stinging is weak. For because of its stickiness and fineness, it produces pain when it penetrates [the flesh], and produces liquefaction because of the pain. The onion has a similar capacity, hence the moisture and vapour from it is hot, fine and sticky. Thus, when it is brought close by, because of the kind of vapour that it is and because it carries with it a fine moisture, it produces tears; when it is eaten, the exhalation passes through […there is a lacuna here…]. Garlic is hot and acrid and has moisture, but it is not sticky, so it does not produce tears.

Διὰ τί τὸ κρόμμυον μόνον οὕτως περιττῶς δάκνει τὼ ὀφθαλμώ (διὸ καὶ τοὔνομά φασι τοῦτ' ἔχειν αὐτό, ὡς τὴν κόρην ποιεῖν συμμύειν), ἡ δὲ ὀρίγανος οὔ, οὐδ' ἄλλα δριμέα ὄντα; καὶ γὰρ τὸ ἀνάρρινον μᾶλλον δάκνον οὐ ποιεῖ ὁμοίως δακρύειν προσφερόμενον, τὸ δὲ προσφερόμενον καὶ κατατρωγόμενον. ἢ ὅτι διαφοραὶ πολλαὶ ἀκολουθοῦσιν ἑκάστοις τῶν δριμέων, ἃ ποιεῖ τὴν ἰδίαν ἑκάστου δύναμιν; τὸ μὲν οὖν ἀνάρρινον διὰ τὸ θερμότερον εἶναι ξηραντικώτερόν ἐστι τῆς γινομένης ὑπ' αὐτοῦ συντήξεως, ἐπεὶ ποιεῖ γε δάκρυον ἐσθίοντι· προσφερόμενον δὲ οὔ, ὅτι οὐκ ἀπατμίζει ἀπ' αὐτοῦ λεπτόν τι· ξηρότερον γάρ ἐστι καὶ θερμότερον. ἡ δὲ ὀρίγανος καὶ τὰ τοιαῦτα θερμὰ ξηρά ἐστιν ἠρέμα. δεῖ δὲ τὸ μέλλον δάκρυον ποιήσειν δηκτικὸν καὶ ὑγρὸν εἶναι καὶ γλίσχρον. διὸ καὶ τὸ ἔλαιον ποιεῖ δακρύειν, ἀσθενῆ ἔχον δῆξιν· διὰ γλισχρότητα γὰρ καὶ λεπτότητα παραδῦνον ποιεῖ τὸν πόνον, καὶ τὴν σύντηξιν διὰ τὸν πόνον. τὸ δὲ κρόμμυον τοιαύτην ἔχει τὴν δύναμιν ὥστε καὶ τὸ ὑγρὸν καὶ τὴν ἀτμίδα αὐτοῦ θερμὴν καὶ λεπτὴν καὶ γλίσχραν εἶναι. ὥστε προσφερόμενον μέν, διὰ τὸ τὴν ἀτμίδα τοιαύτην εἶναι καὶ συναφιέναι ὑγρότητα λεπτήν, ποιεῖ δακρύειν, ἐσθιομένου δὲ ἡ ἀναθυμίασις διιοῦσα ... τὸ δὲ σκόροδον θερμὸν μὲν καὶ δριμύ ἐστι καὶ ὑγρότητα ἔχει, ἀλλ' οὐ γλίσχρον· διὸ οὐ ποιεῖ δακρύειν.

Pseudo-Aristotle, Problemata, 21.22, 925a27-925b12

Alexis on knowing frivolous things.

"You don’t know what you're talking about. Run over and have a conversation with Plato and become enlightened about soda and onions."

λέγεις περὶ ὧν οὐκ οἶσθα· συγγενοῦ τρέχων
Πλάτωνι καὶ γνώσῃ λίτρον καὶ κρόμμυον.

Alexis, Ancylion ap. Diogenes Laertius, Vita philosophorum, 3.37

February 28, 2018 /Sean Coughlin
Philumenus, Oribasius, Aetius of Amida, Dioscorides, Aristotle, Plato, Diogenes Laertius, onions, garlic, marjoram, dog bites, people bites, tears, Problemata, SMT, Alexis, Galen
Botany, Ancient Medicine, Philosophy
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