Olive oil lotion clears scabies mites and eggs in one treatment
A new topical lotion combines abametapir, which prevents mite eggs from hatching, with flavesone from mānuka oil, which kills adult mites, in an olive oil base. In pigs with severe scabies, one four-hour application removed all live mites and viable eggs within a day, and no reinfestation occurred over 42 days. The study in Science Translational Medicine also reported reduced itching and crusting within the first week.
Scabies is a neglected tropical disease affecting roughly 400 million people annually. Sarcoptes scabiei mites burrow into the skin’s upper layer, causing intense itching, inflammation, lesions, and crusting. For over three decades, treatment options have changed little: permethrin lotion and oral ivermectin mainly kill motile mites, leaving eggs unharmed and forcing carefully timed repeat doses.
The experimental lotion dissolves 0.74% abametapir, which blocks egg-hatching enzymes, and 150 mM flavesone from mānuka oil, which rapidly kills adult mites, in olive oil. In pigs, a single four-hour, 100 mL application eliminated every living mite and all eggs capable of hatching within 24 hours; no infestation returned during 42 days, and itching and crusting eased within the first week.
If validated in humans, a one-application scabies lotion could ease treatment for people in endemic or remote communities, where repeated, well-timed doses are difficult to complete. Fewer missed doses may reduce mite resurgence and slow resistance to current drugs. Households, caregivers, and health workers might benefit from simpler regimens, though access, cost, and human safety data would shape any real-world effect.