An itchy ear and cheek on one side may be related to allergies, eczema, etc. It may be due to one side of the ear and cheek coming into contact with allergic substances, such as pollen, animal hair, cosmetics and so on. These allergenic substances can stimulate the body to release a large amount of histamine, which can lead to skin allergies and cause itching. It is also possible that eczema causes itching on one side of the ear and cheek. The causes of eczema are complex, and generally common endocrine dysfunction, insomnia, overwork, climate change, food, etc., may lead to eczema. In addition to itching, eczema patients may also experience symptoms such as rashes and red spots. Appear one side of the ear and cheek is very itchy. It is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the help of the doctor, and carry out targeted treatment or therapy.