Care should be taken to coat the entire skin surface, not just symptomatic areas; any patch of skin left untreated can provide a "safe haven" for one or more mites to survive. One application is normally sufficient, as permethrin kills eggs and hatchlings, as well as adult mites, though many physicians recommend a second application three to seven days later as a precaution. Crusted scabies may require multiple applications, or supplemental treatment with oral ivermectin (below). Permethrin may cause slight irritation of the skin that is usually tolerable. Ivermectin
Oral ivermectin is effective in eradicating scabies, often in a single dose. It is the treatment of choice for crusted scabies, and is sometimes prescribed in combination with a topical agent. It has not been tested on infants, and is not recommended for children under six years of age.Topical ivermectin preparations have been shown to be effective for scabies in adults, though only one such formulation is available in the United States at present, and it is not FDA-approved as a scabies treatment. It has also been useful for sarcoptic mange (the veterinary analog of human scabies).One review found that the efficacy of permethrin is similar to that of systemic or topical ivermectin. A separate review found that although oral ivermectin is usually effective for treatment of scabies, it does have a higher treatment failure rate than topical permethrin. Another review found that oral ivermectin provided a reasonable balance between efficacy and safety.
Lepidopterism is an irritant contact dermatitis caused by irritating caterpillar or moth hairs coming into contact with the skin or mucosa. When referring to the cause, moth dermatitis and caterpillar dermatitis are commonly used; Caripito itch (known as papillonite in French) is an older name referring to the moth dermatitis caused by some Hylesia species. See also
Millipede burn
List of cutaneous conditions

References
Further reading
Hossler EW (2009). "Caterpillars and moths". Dermatol Ther. 22 (4): 353–66. doi:10.1111/j.1529-8019.2009.01247.x. PMID 19580579. S2CID 31799282. Hossler EW (January 2010). "Caterpillars and moths: Part II. Dermatologic manifestations of encounters with Lepidoptera". J. Am. Acad. Dermatol. 62 (1): 13–28, quiz 29–30. doi:10.1016/j.jaad.2009.08.061. PMID 20082887. Hossler EW (January 2010). "Caterpillars and moths: Part I. Dermatologic manifestations of encounters with Lepidoptera". J. Am. Acad. Dermatol. 62 (1): 1–10, quiz 11–2. doi:10.1016/j.jaad.2009.08.060. PMID 20082886. Katzenellenbogen, I. (1955). "Caterpillar Dermatitis as an Occupational Disease". Dermatologica. 111 (2): 99–106. doi:10.1159/000256344. PMID 13277355. Werno, J.; Lesthelle, S.; Doerman, F.; Vincendeau, P. (2002). "Envenimations par les lépidoptères". Revue Française des Laboratoires. 2002 (342): 35. doi:10.1016/S0338-9898(02)80059-2. External links
Caterpillar envenomation on eMedicine