Factors causing skin allergies:
1. Environment: Seasonal changes, fluctuations in temperature and humidity, UV exposure.
2. Medical conditions: Chronic gastrointestinal dysfunction.
3. Hormonal imbalance, which may elevate estrogen and progesterone levels in women.
4. Chronic malnutrition, leading to an acidic body constitution.
5. Psychological factors: prolonged emotional instability, excessive stress, or deep depression.
6. Improper skincare: long-term use of alkaline products or over-cleansing.
7. Use of unsuitable body wash.
8. Effects of styling products, hair setting agents, or shampoos (e.g., highly acidic or alkaline formulations).
9. Consumption of certain foods that trigger sensitivity.
10. Use of inappropriate Chinese or Western medications.
11. Exposure to animals such as cats, dogs, or rabbits.
12. Application of unsuitable cosmetics or skincare products.