Skin itching and scratching leaves a groove may be artificial urticaria, which can be treated by oral medication and physical therapy. Artificial urticaria, the cause of which is still unclear, may be caused by a variety of mechanical stimulation of the skin, which causes mast cells to release vasoactive mediators, manifested by scratching or rubbing the skin, there will be a clear reddish line-like elevated masses, which may be accompanied by varying degrees of itching. 1. Oral medication: patients can take antihistamines, such as loratadine tablets, cetirizine hydrochloride tablets, etc., which can relieve itching and reduce the symptoms of the windballs. 2. Physical therapy: in addition to oral medication, patients can also be combined with the use of physical therapy for treatment, such as narrow-spectrum medium-wave ultraviolet light (NB-UVB), etc., can effectively alleviate the symptoms of artificial urticaria. Itchy skin scratching leaves a groove, it is recommended to go to the hospital in time for treatment. The above drugs need to be used under the guidance of a doctor, avoid self-medication.