This guide helps chemotherapy patients manage headaches, a common treatment side effect. It provides self-care strategies including stress reduction, meditation or relaxation exercises, getting 7-8 hours of sleep nightly, and using mild pain relievers like paracetamol or ibuprofen when appropriate. The material emphasizes seeking immediate medical attention for serious neurological symptoms such as visual changes, difficulty moving or talking, weakness, facial drooping, or headaches following head injury or accompanied by nausea and vomiting.