Many over-the-counter shampoos and lotions use similar killing mechanisms to DDT, which has made it easier for lice, in some place, to grow resistant to these treatments as well. But scientists ...

Piperonyl butoxide 4%, pyrethrum extract (equivalent to 0.33% pyrethrins); shampoo + conditioner in one ... Use fine-tooth or special lice/nit comb on hair to remove nits. Pubic lice: treat ...

If OTC options don't resolve the issue, a healthcare provider may recommend prescription shampoos or topical medications to address stubborn dandruff. Although people of all ages can have lice or ...