If a breast cancer patient receives radiotherapy, there will be corresponding pain in the middle and late stages of radiotherapy, such as the development of burning pain in the breast. The dose of radiation therapy received by most patients in the middle and late stages of radiotherapy has reached the range of 3000-4000 CGY. In this case, corresponding changes will occur in the breast skin, such as hyperpigmentation, erythema, wet peeling and even ulceration. As a result, there will be burning pain in the breast skin, which usually disappears one week after the cessation of radiotherapy, but in some patients there are corresponding ruptures as well as inflammation, and the pain duration will be slightly prolonged. In this case, the patient needs to undergo interventional treatment, for example, the local breakdown of the skin needs to be treated with appropriate infection prevention, and the pain will gradually improve. Therefore, patients do not need to worry too much about the pain caused by radiotherapy for breast cancer. The corresponding side effects are actually mild and acceptable to most patients.