Radiation therapy may cause some damage to the skin at the treatment site, initially just localized skin that looks red and wrinkled. After a few weeks, the skin may become dry. In the later stages of radiation therapy, localized skin breakouts may occur in patients with sensitive skin. Hyperpigmentation of the skin may continue for several more months after radiation therapy ends before returning to normal. Patients receiving radiation therapy should be careful to protect their skin during radiation therapy. Do not apply powder, cream, perfume, deodorant or ointment on the treated area during and for a few weeks after the treatment unless approved by the doctor; 6. In addition, I would like to tell you that the repair ability of human skin is very strong, and most of the skin damage will be fully recovered with the passage of time.