Cutaneous larva migrans

Cutaneous larva migrans (abbreviated by CLM) is a skin disease in humans, caused by the larvae of various nematode  of the Family: Ancylostomatidae. The infection causes a red, intensely pruritic (itchy) eruption. The most common species are Ancylostoma braziliense,  Ancylostoma duodenale . 

Hookworm eggs are shed in infected dog (or other animal) feces to the ground, where they then develop over a period of 1–2 weeks into the infectious larval form (filariform larvae). The filariform larvae can burrow through intact skin that comes into contact with soil or sand that is contaminated with feces. Although they are able to infect the deeper tissues of animals (through to the lungs and then the intestinal tract), humans are incidental hosts and the larvae are only able to penetrate the upper dermis of the skin and thus create the typical wormlike burrows visible underneath the skin. These parasites apparently lack the collagenase enzymes required to penetrate through the basement membrane deeper into the skin.

Treatment

1. Systemic (oral) agents include albendazole
2. Another agent which can be applied either topically or taken by mouth is thiabendazole
3. It  is recommended to use Benadryl or some anti-itch cream (i.e. Cortizone or Calamine lotion). This will help relieve some of the itch.