Understanding Head Lice: A severe head lice infestation can involve many live lice and eggs, known as nits, attached firmly to hair near the scalp, especially behind the ears and at the back of the neck. Common symptoms include itching and scalp irritation. However, dandruff, psoriasis, and hair casts can sometimes look similar, so finding a live crawling louse is the clearest sign of an active infestation.

💊 Treatment Options: Medicated shampoos or lotions can help eliminate lice, while careful wet combing with a fine-toothed nit comb helps remove lice and eggs. Some cases may require prescription treatments if standard products fail. Always follow the product instructions and consult a pharmacist or healthcare professional to choose a safe treatment based on the person’s age and circumstances.

📅 Follow-Up Treatment: Check the hair carefully after treatment, particularly behind the ears and near the nape of the neck. If live lice remain, follow the product’s instructions before deciding what to do next. Some treatments require a second application around 7–9 days later because they may not kill every egg. Continue combing every 2–3 days for 2–3 weeks, and seek professional advice if live lice persist despite correct treatment.

🧺 Preventing Reinfection: Check household members and close contacts, and treat anyone with an active infestation. Wash and hot-dry bedding, clothing, and other washable items used during the 2 days before treatment. Avoid sharing combs, brushes, and hats, and never use insecticide sprays or dangerous home remedies. If the scalp becomes infected, irritation worsens, or treatment repeatedly fails, consult a healthcare professional for further guidance.