Slightly allergic to the face is mainly allergic dermatitis of the face, you can choose to ice, pay attention to diet and lifestyle, take medication and other measures to improve. 1. Ice: You can use cool water to pat the skin, or use an ice towel to apply ice to the face, wash your face with water, and do a good job of cleaning your face. 2. Pay attention to diet and daily routine: facial allergies should eat less spicy and greasy food, do not stay up late, maintain a regular life, so as not to aggravate allergies. 3. Take drugs: you can use antihistamines such as loratadine to relieve allergies, taking drugs should be taken under the guidance of a regular doctor. Loratadine has its corresponding adverse reactions, such as fatigue, headache, drowsiness and so on. The appearance of allergic dermatitis or allergic symptoms worsen, should promptly go to the regular hospital, under the guidance of the doctor symptomatic treatment, do not self-medication.