Most causes of redness and itchiness on the face are caused by allergies, such as allergy to sunlight or allergy to cosmetics, which can occur. Patients can take oral anti-allergy drugs, commonly used as second-generation H1 receptor antagonists, such as loratadine or cetirizine, which have antihistamine, inhibition of mast cell degranulation, anti-allergy and anti-itch effects, or they can be combined with compound glycopyrrolate to take orally, which has anti-inflammatory effects. Topical topical medications can also be chosen from tacrolimus, or zinc oxide cream for topical application. The simple treatment of redness and itching on the face is to avoid contact with allergens, and local cold compresses can be used, such as wrapping a dry towel in an ice pack and applying it to the face, which has the effect of reducing vascular congestion and relieving itching and other symptoms.