Compeed Advance Blister Care
Hydrocolloid, heel and toe sizes
4.6 on Amazon
More trekking days are lost to blisters than to altitude, and hydrocolloid plasters let you keep walking on one — they must go on CLEAN, DRY skin at the first hot spot, not after the blister forms.
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Do not buy this if: Nobody. This and zinc oxide tape are the two things to over-pack.
Everything else we recommend in first aid, including the ones we think suit a different trekker.
Best base kitEVERLIT Ultralight Waterproof First Aid Kit
A sensibly stocked kit in a genuinely waterproof shell, which matters more than the contents list — no commercial kit contains what you actually need in Nepal, so treat it as a bag to add to rather than a finished answer.
Most underratedOral rehydration salts
Almost everyone gets a bad stomach day in Nepal and dehydration at altitude turns that from unpleasant into dangerous — sachets weigh nothing, and they are also sold in every pharmacy in Kathmandu for pennies.
