1, which may be an allergy or a metabolic problem. It is usually related to contact with allergens, or staying up late, or eating irregularly.
2. It is recommended to go to the hospital. If you are allergic, you need to prescribe medicine. If you have metabolic problems, pay attention to supplement sleep and eat more fruits and vegetables.
3. It is recommended to stop using it! Participate in exercise!
Wish you a happy life!