Back itching a scratch up a lot of bumps is generally considered to be urticaria, can be treated through general treatment, drug treatment, physical therapy and other ways to treat. 1. General treatment: patients with urticaria should actively search for the causative factors in daily life and avoid re-exposure. Avoid scratching and other physical stimuli. 2. Drug therapy: patients can take antihistamines as prescribed by the doctor, such as cetirizine, ebastine, etc., to play the role of anti-itching, anti-allergy. For refractory, conventional treatment is ineffective in chronic urticaria, you can follow the doctor’s instructions for injection of biological agents, such as omalizumab. 3. Physical therapy: patients can also choose long-wave or narrow-spectrum medium-wave ultraviolet light treatment, which has a better effect. If you suffer from urticaria, it is recommended to go to a regular hospital, with the doctor standardized treatment.