👉 Atopic is a medical condition in which an immune system overreacts to small, harmless substances. In this case, it refers to an allergic reaction that occurs when a person's immune system mistakenly identifies certain substances (like pollen or dust) as foreign and causes inflammation of their skin, eyes, and respiratory system. This can lead to a range of symptoms such as itching, swelling, redness, and difficulty breathing. The term "atopic" is often used in medical contexts to describe this