How do you treat a lice bite? - briefly
Clean the affected skin with gentle soap and water, then apply an over‑the‑counter anti‑itch cream or topical antihistamine to soothe irritation. If symptoms worsen or persist, seek medical advice for stronger treatment options.
How do you treat a lice bite? - in detail
Lice bites cause small, red, itchy papules that may develop a halo of swelling. Immediate care focuses on reducing irritation and preventing infection.
First steps
- Wash the affected area with mild soap and lukewarm water.
- Pat dry with a clean towel; avoid rubbing, which can worsen inflammation.
Topical options
- Apply a 1 % hydrocortisone cream to the bite for 3–5 days to alleviate itching and redness.
- Use calamine lotion or a 0.5 % pramoxine gel for additional soothing effect.
- For secondary bacterial infection, a thin layer of over‑the‑counter antibiotic ointment (e.g., bacitracin) is appropriate.
Systemic relief
- Oral antihistamines such as cetirizine 10 mg or diphenhydramine 25 mg can be taken every 12 hours to control widespread itching.
- Non‑steroidal anti‑inflammatory drugs (ibuprofen 200 mg) may reduce pain and swelling if needed.
Additional measures
- Keep fingernails trimmed short to limit skin damage from scratching.
- Apply a cold compress for 10 minutes, repeated every hour, to decrease swelling.
- Change clothing and bedding daily; wash in hot water (≥ 60 °C) and dry on high heat to eliminate any remaining lice or eggs.
When to seek professional care
- Bite sites become increasingly painful, develop pus, or spread rapidly.
- Symptoms persist beyond a week despite self‑treatment.
- Signs of an allergic reaction appear, such as difficulty breathing, swelling of the face or throat, or hives covering large areas.
Prevention of recurrence
- Perform a thorough combing of the scalp with a fine‑toothed lice comb at least twice a week.
- Treat all household members with a pediculicide shampoo or lotion as directed by a healthcare provider.
- Vacuum carpets, upholstery, and personal items; discard or seal infested clothing and bedding for two weeks.
Following these steps provides comprehensive management of lice bites and reduces the risk of complications.