This information may change. Always check the official source.Last verified: August 2026 by

Kathmandu has clinics that treat foreigners well and the rest of the country does not. Insurance must name helicopter evacuation, and never drink the tap water.

  • Your policy must name helicopter evacuation and cover the altitude you are actually going to - the cheap ones exclude above 4,000 m.
  • A rescue flight costs USD 3,000 to USD 10,000, and helicopters want a guarantee from your insurer before they lift.
  • Descent is the treatment for altitude sickness - 500 m usually turns a bad night around. Confusion or breathlessness lying down means go down now, at night, with someone.
  • CIWEC Hospital in Kathmandu is the clinic foreigners use, and it knows altitude illness better than anywhere. Outside the valley facilities are basic to none.
  • Never drink the tap water, hotels and teeth included. Dal bhat is the safe order - cooked to death, endlessly refilled and served everywhere.

Insurance, which is not optional here

  • Your policy must name helicopter evacuation and cover the altitude you are actually going to. A trek to Everest Base Camp tops out around 5,550 m.
  • A rescue flight costs USD 3,000 to USD 10,000.
  • Helicopters want a guarantee of payment from your insurer before they lift, so carry the insurer's 24-hour number and your policy number where a guide can read them.
  • Check the policy does not exclude trekking above a set altitude, which the cheap ones do at 4,000 m.

Altitude sickness

  • Ascend slowly and sleep low. Above 3,000 m, gain no more than 300 to 500 m of sleeping altitude a day and take a rest day every 1,000 m.
  • Acetazolamide (Diamox) helps you acclimatise; it does not make you safe. Talk to a doctor before you go.
  • Descent is the treatment. 500 m of descent usually turns a bad night around.
  • HACE and HAPE kill. Confusion, stumbling or breathlessness lying down means go down now, at night, with someone.
  • Alcohol and sleeping pills make it worse.

Where to go when ill

  • CIWEC Hospital in Kathmandu is the clinic foreigners use, with a Pokhara branch, and it knows altitude illness and traveller's diarrhoea better than anywhere.
  • Nepal International Clinic and Mediciti are the other Kathmandu options.
  • Outside the valley, facilities are basic to none. Serious illness means getting to Kathmandu.
  • Pharmacies are everywhere and sell most things over the counter. Bring your own supply of anything you actually depend on.

Water and food

  • Never drink the tap water, including in hotels and including for teeth.
  • Bottled water is everywhere and the plastic is a problem; a filter bottle or purification tablets is better and works on the trail.
  • Boiled water is sold by the litre in teahouses and is the standard trekking answer.
  • Stomach trouble is close to universal. Eat food that is hot and freshly cooked; be careful with salad, ice and anything reheated.
  • Dal bhat is the safe order - it is cooked to death, endlessly refilled and served everywhere.

Before you go

  • Hepatitis A and typhoid are the standard recommendations, with rabies worth considering.
  • Rabies is real here. Dogs are everywhere and a bite or a scratch means treatment the same day, not when you get home.
  • Kathmandu's air is genuinely bad in the dry season. If you have asthma, bring what you need and an N95 for the worst days.
  • Take a first aid kit, including rehydration salts and blister care. The pharmacy is a week away on a trail.

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Sources (2)

What this guide was checked against. Rules and prices change — follow the official link before you rely on a detail.