Most people with scabies are cured after 2 treatments with ivermectin or permethrin, the 2 first-line treatments.[36]Usha V, Gopalakrishnan Nair TV. A comparative study of oral ivermectin and topical permethrin cream in the treatment of scabies. J Am Acad Dermatol. 2000 Feb;42(2 Pt 1):236-40.
http://www.ncbi.nlm.nih.gov/pubmed/10642678?tool=bestpractice.com
Residual itching
Many people with scabies will have residual pruritus lasting for up to 1 month following successful scabies eradication.[42]Johnstone P, Strong M. Scabies. Clin Evid. 2006 Jun;(15):2284-90.
http://www.ncbi.nlm.nih.gov/pubmed/16973088?tool=bestpractice.com