**Atopy.**
Atopy is an allergic reaction to certain substances, which can manifest as itching, rashes and other symptoms. It is a common disease that can affect the skin, respiratory tract, eyes and other organs. Atopic dermatitis (ATD) is the most common manifestation of atopy in children. It is characterized by redness and itching of the skin, which can lead to the formation of blisters and erosions. There are various factors that can increase the risk of developing atopic dermatitis, including genetic predispositions and environmental factors. Treatment of atopic reaction includes the use of antihistamines, corticosteroid creams, and avoidance of substances that cause reactions. It is also important to take proper skin care to prevent further development of atopy and reduce its symptoms.