Nits are present but no lice — what to do? - briefly
«Use a fine‑tooth nit comb on damp hair, apply a pediculicide shampoo if necessary, and wash all clothing and bedding at high temperature». «Repeat combing every 2–3 days for two weeks to eliminate any newly hatched nits».
Nits are present but no lice — what to do? - in detail
When microscopic oval eggs are visible on hair shafts but no active insects are observed, the immediate goal is to eliminate the eggs and prevent any possible hatching.
First, confirm the presence of nits. Use a fine‑tooth comb on dry hair under bright light; nits appear as firm, tan or brown ovals attached close to the scalp. If only these structures are found, treat them as the sole infestation source.
The following steps provide a comprehensive approach:
- Mechanical removal – Apply a wet‑combning product or a conditioner to soften the adhesive, then run a fine metal nit comb from the scalp outward, section by section. After each pass, wipe the comb on a disposable towel to avoid re‑depositing eggs.
- Chemical treatment – Choose a pediculicide formulated for egg eradication, such as a dimethicone‑based lotion. Apply according to label instructions, ensuring thorough coverage of the entire scalp and hair length. Leave the product on for the recommended duration, then rinse completely.
- Environmental control – Wash all clothing, bedding, and personal items used within the previous 48 hours in hot water (≥ 60 °C) and tumble‑dry on high heat. Items that cannot be laundered should be sealed in a plastic bag for two weeks to deprive any dormant eggs of a suitable environment.
- Preventive measures – Advise regular inspection of hair every three days for the next two weeks. Continue wet‑combing sessions at 48‑hour intervals to capture any newly hatched insects before they lay additional eggs.
If after two weeks viable insects appear, repeat the chemical treatment once more, then reassess. Persistent detection after two cycles may indicate resistance; in such cases, consult a healthcare professional for alternative prescription options.
Document each combing session, noting the number of nits removed, to track progress objectively. This systematic protocol eliminates the eggs, blocks development, and reduces the likelihood of a secondary infestation.