Itching on the inside of the elbow may be caused by eczema, urticaria, psoriasis and other diseases, which can be treated by oral medication and medication application as well as ultraviolet light therapy. 1. Eczema: Eczema may be caused by allergic food or allergic skin reactions to clothing or certain objects. It can be treated with oral antihistamine drugs as prescribed by the doctor, such as chlorpheniramine maleate tablets, loratadine tablets and other drugs, which can play the role of anti-allergy. 2. Urticaria: Urticaria may be caused by bacteria, viruses and other pathogens, after the disease will damage the patient’s skin mucous membranes, resulting in skin parts of erythema, doughnuts, edema, accompanied by symptoms of itching. Oral loratadine, ebastine and other drugs can be used for treatment. 3. Psoriasis: psoriasis is related to genetic factors and skin damage, which will lead to a large number of scales adhering to the surface of the skin, which is easy to stimulate the local nerve endings, thus causing itching on the inner side of the elbow of the patient. You can apply tazarotene cream, vitamin A cream and other medications under the guidance of a doctor to reduce itching and dryness of the skin, and in severe cases, you can also undergo ultraviolet light therapy, which can improve the itching and dryness of the skin. The itchy inner elbow may also be caused by dry skin, it is recommended to consult a doctor in a timely manner, improve the examination to clarify the cause of the disease, and follow the doctor’s instructions to standardize the treatment.