Treatments and drugs

By Mayo Clinic Staff

Treatment isn't always necessary

Anhidrosis that affects a small part of your body usually isn't a problem and doesn't need treatment. But large areas of decreased perspiration can be life-threatening. Treatments may be available for the condition that's causing the anhidrosis.

Treating heat-related problems

Overheating needs prompt treatment to prevent symptoms from becoming worse.

Heat cramps

To relieve cramping:

  • Rest and cool down.
  • Drink cool fruit juice or a sports drink that contains electrolytes.
  • Get medical care if cramps become worse or don't go away in about an hour.
  • Wait at least several hours before returning to strenuous activity.

Heat exhaustion

When someone develops symptoms of heat exhaustion, such as nausea, dizziness and a rapid heartbeat, act quickly:

  • Move the person into a shady or air-conditioned space, and elevate his or her legs slightly.
  • Loosen the person's clothing, and remove any heavy pieces of clothing.
  • Have the person drink cool, not iced, water or a sports drink that contains electrolytes.
  • Spray or sponge the person with cool water.
  • If symptoms don't improve quickly, call 911 or emergency medical help.


Heatstroke requires immediate medical care. This condition can be fatal if left untreated. Until help arrives:

  • Move the person into the shade or an air-conditioned space.
  • Start the cooling process by spraying the skin with water or wrapping the person in wet towels or sheets, and use a fan or newspaper to increase air circulation.
Feb. 15, 2012

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