The pain in the arm after swimming is usually caused by cold or strain, the methods to relieve pain are as follows: 1, strict bed rest, try not to carry out activities first, so as not to aggravate the pain. 2, pay attention to local warmth, in the painful parts of the hot compress, hot compress, can promote blood circulation to help relieve pain, in addition to hot compress, you can also apply local appropriate safflower oil, or use Yunnan Baiyao aerosol relief. 3, if the pain is more intense, you can also take appropriate oral non-steroidal anti-inflammatory drugs, or oral anti-inflammatory drugs to relieve pain. If the pain is severe, you can also take oral non-steroidal anti-inflammatory drugs, or oral anti-inflammatory drugs to relieve pain, such as ibuprofen, Nimesulide and other drugs. In addition to the above treatment measures, patients can also cooperate with acupuncture, baking electricity and other measures to improve the symptoms of pain.