The body itches here and there for a while mainly considering that the patient is allergic and may have atopic dermatitis. First of all, check whether there is a rash at the itchy place, if there are red spots and flaking, basically consider it to be allergic dermatitis. Be sure to go to the hospital to check the allergens and know what you are allergic to in order to be able to avoid contact in future life. If the itching is severe, you must take oral anti-allergy medication, such as loratadine tablets, fexofenadine tablets, and vitamin C tablets for treatment. If the itching is only on the body but there is no associated skin manifestation, it is considered to be due to mental stress, sympathetic excitement and mental related itching. It is necessary to carefully ask the patient’s recent condition, whether it is excessive work or life stress, or a family history of psychiatric-related diseases, and then give relevant treatment according to the patient’s specific situation.