What do lice bites on the neck look like? - briefly
Lice bites on the neck appear as tiny, red, raised dots about 1–2 mm across, often with a central puncture point. They are frequently itchy and may be surrounded by a faint halo of inflammation.
What do lice bites on the neck look like? - in detail
Lice bites on the neck appear as small, red punctate lesions, typically 1‑3 mm in diameter. The central point may be slightly raised, surrounded by a faint halo of erythema. In many cases the skin around the bite swells mildly, creating a papular wheal that is tender to the touch. The lesions often develop in clusters or linear rows, reflecting the movement of the insect along the hair shaft. Intense itching accompanies each spot, sometimes leading to excoriation and a darker, crusted appearance if the skin is scratched.
Key characteristics:
- Size: 1–3 mm, sometimes up to 5 mm if inflammation is pronounced.
- Color: Bright red to pink; may turn brownish after repeated scratching.
- Shape: Rounded or slightly oval; central punctum may be visible.
- Distribution: Linear or grouped patterns along the neck, especially near the hairline and behind the ears.
- Temporal development: Redness appears within minutes, peaks after 12–24 hours, and may persist for several days.
Differential features:
- Mosquito bites tend to be isolated, larger (up to 5 mm), and often located on exposed limbs.
- Bed‑bug bites frequently show a “breakfast‑lunch‑dinner” line of three lesions, with a central bite surrounded by two satellite spots.
- Flea bites are usually clustered on the lower legs and have a more pronounced central punctum.
Secondary signs to monitor include:
- Excessive swelling or a warm, tender area suggesting bacterial infection.
- Pustules or oozing indicating secondary dermatitis.
- Persistent discoloration lasting beyond a week, which may require topical corticosteroids.
Management involves antihistamine or topical corticosteroid application to reduce itching and inflammation, along with thorough combing of the hair to remove lice and nits. Maintaining clean bedding and personal items helps prevent re‑infestation.