What is a severe allergic constitution?

Severe allergic constitution is a highly sensitive physical condition characterized by abnormal and intense immune responses to various external substances (such as pollen, dust mites, foods, medications, chemicals, and even certain physical stimuli like ultraviolet light). After exposure to these allergens, the immune system of affected individuals overreacts, releasing large amounts of chemical substances such as histamine. This can lead to symptoms including skin redness and swelling, itching, difficulty breathing, sneezing, runny nose, tearing eyes, asthma attacks, and in severe cases, life-threatening emergencies such as anaphylactic shock. Severe allergic constitution not only affects patients' quality of life but may also pose a threat to their lives. Therefore, it is essential to take special precautions to avoid allergens, carry emergency medications at all times, and seek medical intervention for desensitization therapy or long-term management when necessary.