As a parent who has dutifully combed nits from my children’s hair, the promise of a no-comb treatment for head lice sounds mighty appealing. An article in today’s New England Journal of Medicine looks like a slam dunk for such a treatment, a medication called ivermectin (Sklice). In two trials, one dose of ivermectin and no nit-combing did vastly better than a placebo treatment. Side effects were also minimal. Keep in mind that the trials didn’t test ivermectin against the current standard treatment using lotions made with permethrin or pyrethrins. And they included under 800 people in carefully controlled situations. That means we don’t really know the true effectiveness, side effects, safety profile, and interactions with other drugs. Until more is known about side effects and how ivermectin stacks up against other treatments, it seems wise to follow the current guidelines from the American Academy of Pediatrics. They call for the use of an over-the-counter product containing permethrin or pyrethrins as a first salvo against head lice, along with combing wet hair with a fine-toothed comb to remove nits.
Skin and Hair Care
The FDA’s approval this week of an old drug called ivermectin for treating head lice comes as good news to folks who shudder at the thought of using a nit comb to remove lice. It will be sold as a lotion under the brand name Sklice. Ivermectin works by interfering with nerve and muscle cells in [...]
Is sunlight addictive? That provocative idea was raised by Dr. David Fisher, chief of dermatology at Massachusetts General Hospital in Boston, in a presentation at Harvard Medical School. He cited new evidence suggesting that being in the sun stimulates the so-called “pleasure center” in the brain and releases a rush of feel-good chemicals like endorphins, much as happens with addictive substances or activities. Why? Humans need vitamin D to survive. Once upon a time, it came mainly from skin—skin exposed to sunlight makes vitamin D. So the feelings of pleasure we get from sunlight may be part of a survival mechanism to get us the vitamin D we need.
A new FDA approved treatment for head lice, called Natroba, could be a useful addition to the anti-lice armamentarium, since some head lice have become resistant to the active ingredients in current over-the-counter anti-lice products.