There are many reasons for itchy chest, which may be related to atopic dermatitis, eczema and seborrheic dermatitis, etc. Follow the doctor’s instructions to clarify the cause of the disease and use medication and physical therapy to relieve the symptoms. 1. Allergic dermatitis: If the patient is affected by external factors and has an allergic reaction or belongs to an allergic body, it may lead to the phenomenon of itchy chest. Follow the doctor’s instructions to use glycerine lotion, loratadine tablets and other drugs to relieve symptoms. In daily life, keep the chest skin clean and dry, away from allergens. 2. Eczema: Eczema may also lead to itchy chest, you can take oral cetirizine hydrochloride capsules, vitamin C tablets, topical mometasone furoate ointment and other medications under the guidance of a doctor to improve the phenomenon of itchy chest. In addition, you can also use ultraviolet radiation and other physical therapy to assist in the treatment of eczema under the judgment of the doctor. 3. Seborrheic dermatitis: patients with chest itching, may also be caused by seborrheic dermatitis. You can use selenium disulfide lotion and other drugs as prescribed by the doctor, so as to improve the effect of this symptom. If the patient has an itchy chest, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease and follow the doctor’s instructions for standardized treatment.