Scabies Prevention: Hygiene, Laundry, Contact Avoidance & Outbreak Control

Scabies is caused by Sarcoptes scabiei mites burrowing into the stratum corneum. It spreads through prolonged skin-to-skin contact. Prevention centers on hygiene, environmental decontamination, and rapid treatment of exposed contacts.

Personal Hygiene

• Daily warm, soapy shower/bath.
• Focus on interdigital spaces, wrists, axillae, groin, buttocks.
• Keep fingernails short and clean—mites harbor under nails.

Laundry & Environmental Decontamination

• Wash all clothing, bedding, towels used in last 72 hours in hot water (≥130°F / 54°C) and dry on high heat.
• Non-washable items: seal in plastic bag ≥72 hours (mites die without host) or dry clean.
• Vacuum carpets, upholstery, car seats; discard bag/seal canister.

Avoid Transmission

• Avoid prolonged skin-to-skin contact with known cases.
• Don't share clothing, towels, bedding, brushes.
• In congregate settings (dorms, nursing homes, childcare): vigilance, prompt reporting, cohorting.
• Hand hygiene after contact; sanitizer less effective vs. mites than soap/water.

If Exposed or Diagnosed

• Treat ALL household/close contacts simultaneously—even if asymptomatic (incubation 2–6 weeks).
• First-line: Permethrin 5% cream, neck-to-toes, under nails, leave 8–14 hrs, repeat in 7 days.
• Alternative: Oral ivermectin 200 mcg/kg (repeat in 7–14 days).
• Don't skip retreatment—eggs survive first application.
• Return to work/school 24 hrs after first treatment.

High-Risk Settings Protocol

• Institutions: screen new admissions; isolate suspected cases; staff PPE (gown/gloves) for direct care.
• Outbreak: coordinate with public health; mass treatment may be needed.

Scabies is intensely itchy, highly transmissible, and completely curable—if everyone is treated together, correctly, and the environment is cleaned. Delayed or partial treatment = persistent cycles.