Today it is becoming more and more common for headlice treatments to fail. When this happens, the reoccurring infestation becomes evident within a few weeks after treatment. Persistent headlice infestation can go on for months, and in a few cases, even years. Not only is this an incredible amount of trouble, it can actually be emotionally traumatic for the person who has the headlice infestation, as well as others in the household.
Usually the reason behind a persistent headlice infestation is the direct environment the person is in. It may be that they are being re-infested through household items that were not treated, or someone who they are in close contact with has failed to treat their condition and is still spreading lice.

Another problem that is being seen frequently is that the common shampoo and cream treatments are no longer 100% effective in treating headlice. This is partly due to the fact that the lice are becoming immune to the insecticides in the treatments, so they are no longer killing lice the way they once did.

Persistent headlice infestation can be a big problem. For one thing you can only safely use the medicated treatments so often before they become a health hazard, in addition the emotional stress of having to continually treat all members in your household for headlice will take its toll quickly.

To best fight headlice infestations it is imperative that it be treated properly from the beginning. Treat the hair and carefully remove all the nits from the hair shaft with a specially designed comb.
Always vacuum the carpet and furniture in your home immediately after treatment, and you will also want to wash all bedding and clothes in hot water. Soak combs, brushes and other hair items in very hot water, or completely discard them and buy the items new.

Aside from these steps, you may want to let all people you, or your family has been in contact with, know that there was a headlice infestation and that they should check to ensure that they do not have them.
This will help to eliminate the possibility that the headlice will be passed back and forth between people who are frequently in each other's company. If you have children in daycare or school, call and let them know that your child was exposed to headlice.

Another very important step is to retreat the hair after a week. This will help to rid the head of any newly hatched lice; in addition, keep checking at least every other day for a reoccurring infestation, even after the second treatment.

Also speak with your healthcare provider about what you can do to eliminate headlice.