There are no 100% effective home remedies. Often people use a home remedy, think it is gone, and then 3-4 weeks later realize they still have lice or mistakenly believe they caught it again when it’s just the same lice infestation. If home remedies worked reliably there would be no lice products, prescriptions, or lice treatment companies.  You can increase the chance of your chosen home remedy working by doing something that is proven to treat lice: manual lice combing.