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Step 1
Assess for mild altitude illness (see "How to Assess Altitude Illness"); if you suspect it, treat with the following steps. (If you suspect severe altitude illness, see "How to Treat Severe Altitude Illness.")
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Step 2
Hydrate well, especially with oral rehydration salts or diluted sports drinks. Urine should be clear and copious.
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Step 3
Have the person exercise lightly, and cease activities if symptoms worsen.
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Step 4
Administer aspirin, acetaminophen or ibuprofen to treat headaches.
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Step 5
Administer acetazolamide (known by the brand name of Diamox) only if the person is not allergic to sulfa drugs. Consult a physician.
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Step 6
Avoid alcohol, caffeine and smoking.
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Step 7
Avoid any medications with sedatives in them, such as sleeping pills, cold medicines and antihistamines.
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Step 8
Don't ascend further until symptoms improve. Descend if symptoms don't improve in two days or if the condition advances to severe altitude illness.








