Lice and Scabies: Treatment Update

Karen Gunning, PharmD; Bernadette Kiraly, MD; Karly Pippitt, MD


Am Fam Physician. 2019;99(10):635-642. 

In This Article

Clinical Presentation

The pruritus associated with pediculosis is a delayed hypersensitivity reaction, which may take four to six weeks to develop after the first exposure, with future exposures resulting in pruritus within one to two days.[1] Intense pruritus leads to scratching, with subsequent excoriations and possible secondary cellulitis.