Management of Side Effects of Radiation Therapy
Understanding Radiation Therapy Side Effects
Radiation therapy can cause side effects because it affects both cancerous and healthy cells in the treatment area. These side effects are generally classified as:
Acute Side Effects: Occur during treatment, from Day 1 to Day 90 (as per RTOG/EORTC criteria).
Chronic Side Effects: Appear after Day 90 and may last longer.
They also vary depending on the site being treated
- Head & Neck
- Brain & CNS
- Thoracic region
- Gastrointestinal & Pelvic areas
- Hematologic (blood-related)
Skin Reactions (Radiation Dermatitis)
Wash the treated area gently with warm water and mild soap.
Pat dry with a soft towel; prefer showers over baths.
Use mild moisturizers (only with doctor’s approval).
Avoid heat pads, hot water bottles, saunas, and ice packs.
Protect skin from the sun; use high-SPF sunscreen even under clothes.
Avoid swimming during and shortly after treatment.
Wear soft cotton clothing; avoid tight or underwired bras.
Mouth & Throat (Mucositis)
Prevention:
Dental check-up and removal of bad teeth before starting RT.
Use fluoride toothpaste.
Maintain good oral hygiene & dietary modifications.
Management:
Brush gently with a soft toothbrush.
Rinse every 4 hours with saline/baking soda solution.
Eat soft, semisolid foods; avoid spicy or coarse items.
Stay hydrated.
Use benzydamine mouthwash (avoid chlorhexidine).
Pain relief: local anesthetics (lidocaine), oral morphine, systemic analgesics.
Advanced cases: fentanyl patches if oral meds ineffective.
Brain & Central Nervous System (CNS)
Corticosteroids (Dexamethasone preferred) for swelling/edema.
Anticonvulsants if seizures occur.
Thoracic Side Effects
Nausea & Vomiting management:
5-HT3 receptor antagonists (Ondansetron, Granisetron, Dolasetron, Palonosetron).
Corticosteroids (Dexamethasone).
NK-1 receptor antagonists (Aprepitant/Fosaprepitant, NEPA).
Dopamine antagonists (Metoclopramide).
Olanzapine, Benzodiazepines, Cannabinoids in select cases.
Gastrointestinal & Pelvic Side Effects
Diarrhea Management:
Nutritional counseling.
Enteral nutrition via feeding tube if oral intake insufficient.
Parenteral nutrition for short-term use in selected cases.
Anorexia & Cachexia Management:
Medications: Megestrol acetate, Medroxyprogesterone acetate, or low-dose corticosteroids.
Thoracic Side Effects
Nausea & Vomiting management:
5-HT3 receptor antagonists (Ondansetron, Granisetron, Dolasetron, Palonosetron).
Corticosteroids (Dexamethasone).
NK-1 receptor antagonists (Aprepitant/Fosaprepitant, NEPA).
Dopamine antagonists (Metoclopramide).
Olanzapine, Benzodiazepines, Cannabinoids in select cases.
Thoracic Side Effects
Nausea & Vomiting management:
5-HT3 receptor antagonists (Ondansetron, Granisetron, Dolasetron, Palonosetron).
Corticosteroids (Dexamethasone).
NK-1 receptor antagonists (Aprepitant/Fosaprepitant, NEPA).
Dopamine antagonists (Metoclopramide).
Olanzapine, Benzodiazepines, Cannabinoids in select cases.
Hematologic Side Effects
Radiation can suppress blood cell production, requiring close monitoring.
Supportive treatment includes growth factors, blood transfusions, and infection control.
Key Takeaways for Patients
Most side effects are temporary and manageable.
Good hygiene, nutrition, and symptom control can improve comfort during therapy.
Always consult your oncologist before using creams, medicines, or supplements.
Early recognition and proactive management of side effects help ensure smoother recovery.
