Larva currens is also a cause of migratory pruritic eruptions but is marked by 1) migratory speed on the order of inches per hour 2) perianal involvement due to autoinfection from stool and 3) a wide band of urticaria. Cause
Hookworm eggs are shed in the infected dog (or other animal) feces to the ground and beach sand, 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 epidermis 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 dermal layers of the skin. Treatment
CLM can be treated in a number of different ways:

Systemic (oral) agents include albendazole   (trade name Albenza)  and ivermectin (trade name Stromectol). Another agent which can be applied either topically or taken by mouth is thiabendazole (trade name Mintezol), an anti-helminthic. Topical freezing agents, such as ethylene chloride or liquid nitrogen, applied locally can freeze and kill the larvae, but this method has a high failure rate because the larvae are usually located away from the site of the visible skin trails.
Additionally, this is a painful method which can cause blistering and/or ulceration of the skin and it is therefore not recommended. 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. Wearing shoes in areas where these parasites are known to be endemic offers protection from infection. In general, avoiding exposure of skin to contaminated soil or sand offers the best protection. In some areas dogs have been prohibited from beaches in an attempt to control human infection. Additional images
See also
Dermatology
Intestinal parasite
Visceral larva migrans
List of migrating cutaneous conditions

References
External links
DermAtlas -1921851750