Traveling is an incredible adventure, but sharing spaces in hostels or sleeper buses across Latin America can sometimes expose you to unexpected health risks. Scabies (known locally as sarna or escabiosis) is a highly contagious skin condition that every traveler—especially backpackers—should understand.
Here is everything you need to know about preventing, identifying, and treating scabies on the road.
What is Scabies and How Does it Spread?
Scabies is an infestation caused by the microscopic human itch mite (Sarcoptes scabiei var. hominis). These mites burrow into the upper layer of your skin to live and lay eggs, triggering an intense, allergic-like itch.
For travelers, scabies spreads primarily through:
- Direct skin-to-skin contact: The most common transmission route requires prolonged physical contact with an infected person. A quick handshake or hug usually won’t spread it.
- Shared bedding and towels: Though less common, mites can survive off human skin for 2 to 3 days. Unwashed sheets, blankets, or towels in hostels, night trains, or budget accommodations can act as transmission vehicles.
Symptoms to Watch Out For
Timing is tricky with scabies. If this is your first time getting it, symptoms typically take 4 to 8 weeks to appear—yet you can still spread it during this incubation period. If you have had it before, symptoms can flare up in just 1 to 4 days.
Key Warning Signs:
- Intense itching: Often severe and noticeably worse at night.
- Pimple-like rash: Small, red bumps that look like an acne breakout or tiny blisters.
- Burrow marks: Tiny, irregular, zigzagging, or “S”-shaped lines on your skin.
Common Hotspots: Mites love warm folds of skin. Check between your fingers, wrists, elbows, armpits, waist, shoulder blades, and genital areas.
Prevention: Keeping Mites at Bay on the Road
Maintaining good hygiene is always smart, but preventing scabies is more about managing your environment than how often you shower.
- Inspect your bed: Always check your hostel bed or night bus seat. If the hygiene looks questionable, use your own sleeping bag liner.
- Never share linens: Always use your own towel and sleepwear.
- Safe laundry practices: Wash suspected clothing and bedding in hot water. Temperatures over 50°C (122°F) for 10 minutes will kill mites and their eggs.
What to Do If You Suspect You Have Scabies
Do not panic, but do act quickly. Scabies will not go away on its own and requires medical treatment.
- Seek medical attention immediately: Do not rely on over-the-counter anti-itch creams or antihistamines to cure the infestation; they may soothe the itch, but they will not kill the mites. You need a prescription scabicide.
- Avoid scratching: Severe scratching can lead to secondary bacterial skin infections.
Need a Doctor in Cusco?
If you are traveling through the Peruvian Andes and suspect you’ve picked up scabies or any other skin condition, do not let it ruin your trip. Reach out to Doctor Cusco for prompt, professional medical care directly at your hostel, hotel, or Airbnb.
Official Treatment Guidelines
According to the U.S. Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO), treating scabies involves:
| Treatment Type | Details | Notes |
|---|---|---|
| Topical Creams | 5% Permethrin cream is the most common first-line treatment. | Applied from the neck down and left on overnight (8-14 hours). A second application a week later may be needed. |
| Oral Medication | Ivermectin pills may be prescribed for severe cases or when creams fail. | Not recommended for pregnant women or children under 15 kg. |
| Decontamination | Wash all clothes, towels, and bedding used in the 3 days before treatment in hot water, and machine dry on high heat. | Mites die within 2 to 3 days away from the human body. |
Backpacker Hack: If you are on the road and cannot wash certain items (like a bulky backpack) in hot water, seal them in a closed plastic bag for 72 hours up to a week. The mites will naturally die off.
Frequently Asked Questions (FAQs)
No. Animals do not spread human scabies. Pets and street dogs get a different type of mite (mange) which cannot survive or reproduce on humans.
The prescribed medicines kill the mites fast, but the allergic reaction and itching can persist for several weeks after successful treatment.
You should avoid close, skin-to-skin contact with other travelers and avoid sharing dorms until you have completed your treatment and decontaminated your belongings.
