The redness and itchiness of the skin at the zygomatic bone is mainly caused by solar dermatitis, papular urticaria, allergic eczema, etc., which can be treated by applying medication, oral medication and physical therapy under the guidance of a doctor. 1. Solar dermatitis: solar dermatitis is caused by prolonged exposure of the skin to the sun, ultraviolet radiation can lead to skin damage, which can be manifested as red and itchy skin on the cheekbones. You can apply glycerine lotion, compound menthol ointment and other drugs to treat it. 2. Pemphigus urticaria: Pemphigus urticaria is caused by mosquito bites, mosquito bites, injecting saliva into the skin, the human body has an allergic reaction, which can be manifested as red and itchy skin at the zygomatic bone. You can take oral loratadine tablets, cetirizine hydrochloride tablets and other medications. 3. Eczema: Allergy is an important reason for the occurrence of eczema, and the allergens can come from the outside world or inside the body. The lesions will lead to red spots or small papules on the patient’s skin, causing itching. It can be relieved by local application of glycerite lotion, mometasone furoate soft, oral anti-allergy medication, or phototherapy physical therapy. Red and itchy skin at the cheekbones may also be caused by neurodermatitis, contact dermatitis, etc., and need to be under the guidance of the doctor, according to the specific cause to make targeted treatment.