Arm cramps can be relieved quickly by the following methods: First, stop moving the arm immediately, never try to do heavy work or fine movements. Second, the area of the lesion needs to be warmed up as soon as possible, for example, patients can use hot towels, or hot water bags such as devices to apply heat to the affected area. Third, the patient needs to replenish some electrolytes properly, you can buy oral rehydration salts from the pharmacy by yourself, and drink a lot of water. Fourth, the patient can go to the acupuncture and massage department of the local Chinese hospital to do a series of physical therapy such as electro-acupuncture, moxibustion and tui-na on the lesioned area to quickly relieve the symptoms.