Facial rashes can be caused by eczema, contact dermatitis, and acne. It can usually be treated with medication. 1. Eczema: Eczema, caused by a variety of factors, can result in a large, red, itchy rash on the face. Topical calcium-modulating phosphatase inhibitors such as pimecrolimus ointment, tacrolimus ointment, or weak glucocorticosteroids such as hydrocortisone cream or dieldrin can be used. If necessary, oral antihistamines such as loratadine can be combined. 2. Contact dermatitis: an allergic or irritant reaction that occurs when the facial skin comes into contact with certain sensitizing or irritating substances, causing a red rash on the face, accompanied by itching and stinging. At this time, the need to clarify the causative factors and avoid. Secondly, you can apply cold wet compresses with topical boric acid solution or use anti-inflammatory treatment with calcium-modulated phosphatase inhibitors such as pimecrolimus ointment. If necessary, oral antihistamines such as cetirizine can be combined. 3. Acne: Acne can also cause a red rash on the face. Adapalene gel, fusidic acid cream, benzoyl peroxide cream can be used externally, and if necessary, oral isotretinoin and minocycline can be taken together. If the patient’s facial rash, it is recommended to go to the hospital in a timely manner to identify the cause of the disease and then targeted treatment. The above medications should be used in accordance with medical advice.