What should I ask my oncologist for to help with injection site reaction (itching like crazy)? I’m doing...

Managing Injection Site Reactions with Epcoritamab

I understand how frustrating intense itching at injection sites can be, especially when over-the-counter options aren't providing relief. Let me help you understand what to discuss with your oncology team.

Understanding Epcoritamab Injection Site Reactions

Epcoritamab (Epkinly) is a bispecific antibody — a type of immunotherapy that works by connecting your T cells directly to lymphoma cells to trigger cancer cell death. According to NCCN Guidelines for Follicular Lymphoma, bispecific antibodies like epcoritamab represent an important treatment option for B-cell lymphomas.

Because epcoritamab is given as a subcutaneous injection (under the skin), local reactions at the injection site are a known side effect. The itching you're experiencing is your immune system reacting to the injection itself — this is actually a sign your immune system is active, though that doesn't make it any more comfortable.

Specific Questions to Ask Your Oncologist

Here are targeted questions about managing your injection site itching:

About Prescription-Strength Options:

1. "Can you prescribe a topical corticosteroid cream (like triamcinolone or clobetasol) to apply to the injection site after treatment?"
2. "Would a topical anesthetic like lidocaine cream help numb the area before or after injection?"
3. "Are there oral antihistamines (like cetirizine or fexofenadine) I should take before or after my Epkinly injections?"
4. "Could a short course of oral corticosteroids help if the reaction is severe?"

About Injection Technique: 5. "Can we rotate injection sites more systematically to give each area time to heal between treatments?" 6. "Should I be using ice before injection and heat/cooling after to reduce inflammation?" 7. "Are there specific post-injection care instructions that might help — like avoiding tight clothing over the site?"

About Timing and Prevention: 8. "Should I take any preventive medications (like an antihistamine) before my next Epkinly dose?" 9. "How long after injection should I wait before applying topical treatments?" 10. "If the itching is severe, should I contact your office between treatments, or wait until my next visit?"

What Your Care Team Can Offer

According to NCCN Guidelines for Patients with Marginal Zone Lymphomas, managing side effects is a critical part of cancer treatment. Your oncology team should be able to:

• Prescribe topical treatments that are stronger than over-the-counter options
• Recommend timing strategies for when to apply treatments relative to injections
• Adjust pre-medication protocols (antihistamines or corticosteroids given before treatment)
• Monitor for signs of infection at injection sites
• Modify injection technique if certain areas are more reactive

Important Questions About Side Effect Management

The NCCN Guidelines emphasize asking your care team these broader questions:

• "What side effects should I watch for that could be life-threatening?"
• "When should I call my care team about this reaction?"
• "What can I do to help with this side effect?"
• "What medicines can I take to prevent or relieve this itching?"

What NOT to Do

• Don't use prescription creams from previous treatments without checking with your oncologist first
• Don't skip doses or delay treatment because of injection site reactions — your team can help manage this
• Don't assume the itching will resolve on its own if it's severe

Next Steps

Before your next Epkinly injection:

1. Write down these questions and bring them to your appointment
2. Describe the severity of itching (on a scale of 1-10) and how long it lasts
3. Tell your team what over-the-counter products you've already tried
4. Ask if you should come in early to discuss options before your next dose

Your oncology team has experience managing epcoritamab side effects and should have several options to help. The goal is to keep you comfortable while continuing this effective treatment.

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This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions.