Face itchy red cause more, such as cosmetic dermatitis, dengue, urticaria and other diseases caused by the need to identify the specific causes of targeted treatment, such as general treatment, oral medication, topical drug therapy. 1. Cosmetic dermatitis: it is the dermatitis caused by contact with cosmetics or hair dyes on the face, and the first thing you need to do is to stop using the relevant cosmetics. Under the guidance of a doctor, oral antihistamine drugs such as loratadine and other anti-allergy treatment, while with the external application of glucocorticoid drugs such as hydrocortisone ointment and other topical application, can promote the recession and recovery of dermatitis, but can not be used for a long time, so as to avoid triggering hormone-dependent dermatitis. 2. Danovirus: the lymphatic network of the skin is infected by type B hemolytic streptococcus and caused by the disease, which can lead to flaky erythema and bright red color of the skin on the face. The main use of penicillin drugs for treatment, for penicillin allergy patients, can be replaced with macrolides such as erythromycin, cephalosporin and other antibiotics for treatment. 3. Urticaria: Various reasons such as food, drugs and physical stimuli lead to temporary expansion of small blood vessels in the skin and mucous membranes as well as increased permeability caused by local edema, which can lead to local skin red lumps, accompanied by obvious itching. Urticaria treatment can take antihistamines such as loratadine, etc., while with the external application of anti-itch solution such as glycerite lotion for anti-itch treatment. Also avoid contact with allergens to prevent. There are other reasons for the itchy and red face, you need to go to the hospital in time, active diagnosis and treatment, so as not to delay the condition. The above medications should be used under the guidance of a doctor.