Answer
EGFR is present in normal skin structures, so blocking it commonly causes acne-like rash, dryness, itching and nail changes. Severe or infected reactions need prompt review.
Sources for this answer
- Erbitux 5mg/ml solution for infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.