Radiation therapy for breast cancer 25 times will produce side effects of radiation therapy and how long it takes for patients to return to normal varies from person to person. Patients with breast cancer are usually treated radically with surgery, and radiotherapy is taken after surgery. Radiotherapy 25 times will produce radiotherapy side effects, such as adverse skin reactions. How long a patient can return to normal depends on the physical condition and daily care and regimen. For early stage breast cancer patients with better physical condition, patients will recover faster and can usually return to normal within 1-2 weeks after the end of radiotherapy. For advanced breast cancer patients, if they are in poor physical condition, it may take several months or even a year for the side effects to fade away after 25 times of radiotherapy, and then they can slowly return to normal. The skin in the irradiated area after radiotherapy should be protected by keeping the area clean and dry. If the skin is itchy, avoid scratching with your hands to avoid local damage or infection.