What skin areas should I avoid treating with this pencil, and when should I seek professional advice instead?

The pencil is formulated for intact or superficially broken skin on small surface areas only. Avoid contact with the eyes, eyelids, lips, nasal passages, genital mucosa, and any other delicate tissue — the alcohol and dye can cause significant irritation there. Do not apply over large zones (for example, extensive grazes or burns), on deep puncture wounds, animal bites, or wounds with embedded debris; these require proper irrigation and clinical assessment. If the skin around the injury is already highly inflamed, weeping, or shows signs of spreading redness, warmth, or increasing pain, stop self-treatment and seek medical advice. People with known sensitivity to triarylmethane dyes or alcohol-based preparations should also consult a pharmacist before use. The product is not a substitute for professional wound care when the injury is beyond a minor scratch or cut.