Core Insights - July 8 marks the 21st "World Allergy Day," highlighting the increased incidence of allergic diseases during the hot and humid summer months, particularly for skin allergy patients [1] - Allergies are characterized as abnormal immune responses, indicating an imbalance rather than a strong immune system, leading to excessive self-protection against foreign invaders [1] Group 1: Types of Allergic Skin Diseases - Common allergic skin diseases include urticaria, eczema, and atopic dermatitis, with urticaria being a prevalent condition characterized by itchy wheals that can resolve within hours to a day [2] - Eczema is a severe inflammatory skin reaction triggered by various internal and external factors, with a significant link to genetic predisposition and environmental changes [2] - Atopic dermatitis is a chronic, recurrent inflammatory skin disease associated with genetic allergic predisposition, often co-occurring with other allergic conditions like allergic rhinitis and asthma [2] Group 2: Prevention and Management - For patients with a history of allergic diseases, identifying and avoiding allergens is crucial for prevention, alongside maintaining a healthy lifestyle to boost immune function [2] - Recommendations for summer include avoiding sun exposure during peak hours, wearing protective gear, and minimizing time spent in environments prone to insect activity [2] - Severe allergic reactions can lead to life-threatening symptoms such as chest tightness and anaphylactic shock, necessitating immediate observation and treatment [3]