Symptoms can come and go, which means that you may continue to have scabs on your scalp or other places. Head lice are wingless insects that live on your scalp. They feed on blood. You may feel ...

Scabs on the scalp can be caused by inflamed hair follicles or inflamed skin. It can also be caused by infestations of lice or an infection called scalp ringworm. In rare cases, scabs that bleed ...

Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...