After the shower body is very itchy, may be due to dry weather, cholinergic urticaria and other factors. 1. Dry weather: the weather is too dry, the bath is not timely moisturizing, water evaporation after the skin is dry, can lead to the phenomenon of itchy body, is generally a normal phenomenon, no special treatment, appropriate application of lotion can be. 2. Cholinergic urticaria: This disease is usually due to exercise, stress, spicy diet, hot baths and other factors that increase body temperature, resulting in mucosal vasodilatation and increased permeability, resulting in a limited edema reaction. Its clinical symptoms are mostly manifested as erythema, wind mass and itching. Patients can be treated with antihistamines such as fexofenadine and loratadine under medical supervision. After the shower on the body is very itchy may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the physician to give targeted treatment or treatment.