Why Does the Facial Skin Become Allergic?

Jul 05, 2024 Source: Cainiu Health
Disease description:

My skin on the face has been allergic for the past few days; it's red and a bit itchy. I don't know what's causing it. May I ask why facial skin becomes allergic?

Doctor's answer (1)
Dr. Wang Xiaoyan
The causes of facial skin allergies are diverse and complex, mainly including: 1. Contact with allergens: such as pollen, dust mites, fungal spores, animal dander, and the use of inappropriate cosmetics or skincare products, all of which may trigger allergic skin reactions. 2. Ultraviolet (UV) radiation: prolonged exposure to sunlight can damage the skin and cause allergic reactions, especially noticeable during seasons when UV radiation is stronger, such as spring transitioning to summer or summer transitioning to autumn. 3. Seasonal changes: during seasonal transitions, the skin needs to adapt to different climates and environments, which may also trigger allergies. 4. Impaired skin barrier: with aging, thinning of the skin, or long-term use of topical corticosteroid creams, the skin's protective function weakens, making it more susceptible to external irritants and allergic reactions. 5. Other factors: such as emotional stress, systemic diseases (e.g., connective tissue disorders), and drug allergies, which may also lead to facial skin allergies.