Altitude sickness most often occurs at altitudes above 8000 ft (2438 m). In mild cases, the symptoms can be treated with over-the-counter medicine, but the best way to treat altitude sickness is to go to a lower altitude quickly.
Altitude sickness can be deadly. People with symptoms should not go to a higher altitude until the symptoms are gone. Symptoms of confusion, feeling faint, or not being able to walk in a straight line mean the condition is life-threatening.
eMedicineHealth Medical Reference from Healthwise
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