The Spread Shot of Medicine Melancholy, the mechanical tool (a Touhou LW original). She administers inhaled medicine in this attack. Poison is clearly a form of information because when cellular tissue receives the input of poison (i.e., false information), it malfunctions. This could also be said for medicine, with the only difference being whether the effects are desirable or not.

The Focus Shot of Medicine Melancholy, the mechanical tool (a Touhou LW original). She administers a medical injection in this attack. Everyone's afraid of injections. There's no way getting a needle jabbed into your body could ever be pleasant, and all humans hold an instinctual aversion to anything that could potentially destroy them beyond repair. Venomous snakes, wasps, and scorpions are probably hated for similar reasons. But don't worry... she's only administering medicine.

A Spell Card of Medicine Melancholy, the mechanical tool (a Touhou LW original). She performs a transfusion in this attack. The medical procedure of transferring bodily fluids, particularly blood, into humans took quite a while to catch on. Many people considered blood to be the source of life itself, inherited from one's ancestors, and something impure. When you consider these beliefs attached to blood, it's easy to imagine how profane the act of receiving someone else's blood was back then. They focused more on the mental and spiritual side of things than the physical. However, they weren't exactly wrong in their belief that blood records information about one's ancestors. Though, in truth, this applies to every cell in the body―blood is just easier to extract.

A Spell Card of Medicine Melancholy, the mechanical tool (a Touhou LW original). She administers medication in this attack. The history of medicine is a history of philosophy. In the past, people believed in the simple concept that universal truths are logical and consistent. They assumed that mother nature's laws govern the human body, that celestial objects influence the mind, and that there is only a tiny disconnect between humans and the rest of the universe. That's why so many "medical cures" caught on without any empirical evidence of their effectiveness. They used false logic to prescribe treatment methods based on how the properties of an illness related to universal truths. These methods were so prevalent for so long that the concepts of observing the effects of treatments, determining whether they actually work, and improving the processes through repeated testing were truly revolutionary. But thanks to that revolution, we're blessed with the medical knowledge and pharmaceutical products we have today.

The Last Word of Medicine Melancholy, the mechanical tool (a Touhou LW original). She performs surgery in this attack. Non-invasive treatments such as medication have quite a long history, unlike surgery, where doctors have to physically reach into a patient's body to treat them. The inside of a body is sacred while also being impure, so the adoption of surgical treatments that encroach on that domain was a big turning point in human history. However, the medical treatments of the future will develop beyond this. Medical nanomachines will blur the line between non-invasive and surgical treatments. By prescribing nanomachines in a similar method to medicinal inhalants, it will become possible for people to receive completely non-invasive surgery from the machines moving within their own bodies. Even without nanomachines, this mechanical doll, well-versed in human anatomy, can treat any condition by administering medicine and performing minimal surgical procedures. This is the ideal medical treatment that humanity has always strived for.