Itching on the back after cupping may be caused by normal skin irritation reaction, skin infection, or the presence of wind evil on the body surface. In the process of cupping, due to the local stimulation of the mouth of the can, resulting in skin congestion, some tightening of the itching sensation will occur, which is a normal phenomenon, and can be relieved by resting a little bit, no need for treatment. After cupping, some skin lesions may appear, resulting in a decrease in the ability of the skin to resist germs, if you do not pay attention to dryness and cleanliness, bacteria, fungi, etc. with the wounds into the skin, causing skin infections, itchy skin may occur. Chinese medicine believes that itching of the skin after cupping is a manifestation of wind evil in the body, which is a normal response to the lesion, indicating that the disease qi is being discharged externally. If the itchy back cannot be relieved after cupping, it is recommended to go to the regular hospital for diagnosis and treatment in time.