Diagnosis of cutaneous larva migrans is based on physical examination and history. Skin biopsy usually is not helpful, since the larvae usually are located several centimeters from the edge of the track. A peripheral eosinophilia may be observed. Antihistamines and topical steroids can be used in conjunction with anthelminthics for symptomatic relief of pruritus. Oral antibiotics are used if secondary impetiginization or cellulitis is present.
Cryosurgery is painful and often requires multiple treatments.
Cryosurgery at the leading edge of the track was imprecise because the migrating larvae usually are located several centimeters beyond this point. Anthelmintics - DOC for this condition. FDA approved for the treatment of cutaneous larva migrans but is suggested as DOC by many studies. Single-dose therapy makes this drug convenient. Available in US because of FDA approval for treatment of onchocerciasis and strongyloidiasis.