The medical science that studies allergies, their causes, mechanisms, and treatments.
From 'allergy' (Greek 'allos' + 'ergon') plus the suffix '-logy' (the study of). The discipline formalized in the early 20th century as doctors recognized allergies as a distinct clinical phenomenon.
Allergology revealed that allergies aren't actually about the substance itself being dangerous—your immune system is simply mislabeling something harmless as a threat, which is why different people react so differently to the same things!
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