For this quest you must speak with Hippokrates. He can be found in his clinic in the city of Argos, which is located directly south of Korinth. When you reach his clinic a cut scene will initiate in which Hippokrates’ assistant, Sostratos, finds himself in a confrontation with a local priestess. Intervene in the conversation and then speak with Sostratos about the location of Hippokrates. When he asks you to deliver some medical supplies, you can accept to do it for free or demand a reward in the form of drachmae. If you choose the former it will be greatly appreciated by Hippokrates.
When you are done speaking with Sostratos, head east to begin your search for Hippokrates. His exact location is marked on the map. Approaching him will trigger a brief cut scene, after which you can question him (don’t worry, mentioning his hair problem will not incur his wrath). When you are finished questioning tell Hippokrates that you will attempt to find his lost notes. This completes the quest.