A patient is undergoing radiation therapy for the treatment of cancer. It is important for the nurse to educate the patient on the proper precautions to take during this treatment. One major side effect of radiation therapy is skin irritation. To manage this, the patient should be advised to keep the area clean and dry and may use a barrier cream. Additionally, they should limit sun exposure to the irradiated area.
Fill in the blank with the appropriate term: During radiation therapy, patients should be advised to avoid exposure to __________ to prevent skin irritation on the treated area.