Redness of the chin needs to be treated with medication according to the cause, and common causes include acne, seborrheic dermatitis, and so on. 1. Acne: Acne is mainly related to the increase of androgen and sebum secretion, and it occurs on the cheeks, forehead and chin, manifesting as red rashes, pimples, pustules, etc. on the surface of the skin. It can be treated with topical retinoic acid cream, benzoyl peroxide, etc. When secondary bacterial infection occurs, it can be treated with topical fusidic acid cream, etc. For patients with moderate-to-severe acne, it can be combined with oral medication, such as doxycycline hydrochloride tablets and other antibiotics, and at the same time, it can be treated with oral isotretinoin. 2. Seborrheic dermatitis: Seborrheic dermatitis may be related to heredity, sebum metabolism, etc. It occurs in the head, face, chest and back, etc. It is mainly manifested as erythematous rashes on the surface of the skin, which are often accompanied by itching of different degrees. Tacrolimus ointment can be used topically, and when itching is severe, loratadine tablets can be taken orally, and for bacterial infections, tetracycline and other drugs can be taken orally. All of the above drugs should be used under the guidance of a professional doctor, avoid self-medication. The redness of the chin may also have other causes, it is recommended to go to the hospital in time to improve the examination, to clarify the cause of the disease to give targeted treatment.