Cutaneous larva migrans (CLM) is a parasitic skin infection caused by the larvae of certain types of hookworms. It is commonly known as creeping eruption due to the characteristic pattern of red, itchy, winding lines on the skin's surface. The condition primarily affects humans but can also occur in certain animals.
The larvae responsible for cutaneous larva migrans are typically found in the feces of infected animals, especially dogs and cats. When the larvae come into direct contact with human skin, they burrow into the upper layers of the skin, causing an intense inflammatory reaction. This results in the formation of serpentine-like tracks or tunnels under the skin, which gradually advance and can cause severe itching and discomfort.
Cutaneous larva migrans is usually diagnosed based on the distinct clinical appearance and a history of exposure to contaminated soil or sand. The condition commonly occurs in tropical and subtropical regions, where the larvae thrive in warm and humid environments.
Treatment for cutaneous larva migrans typically involves the use of topical medications, such as thiabendazole or ivermectin, to kill the larvae and relieve symptoms. Antihistamines or corticosteroids may be prescribed to alleviate itching and inflammation. In most cases, the infection resolves within a few weeks to months without complications, although recurrent episodes can occur if re-exposure to contaminated soil or sand is not avoided.
Preventing cutaneous larva migrans involves wearing protective footwear, avoiding contact with unclean soil or sand, and practicing good personal hygiene, especially in areas known to be endemic for the parasite.
