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When the body temperature exceeds 105� F or 41� C, it is called as hyperpyrexia.

Signs & Symptons

  • Lethargy
  • Dehydration
  • Drowsiness
  • Delirium
  • Dry flushed skin in the absence of sweating
  • Shock – cold extremities
  • Seizures
  • Haemorrhage if fever is of prolonged duration


  • Following acute infections like Malaria, Pneumonia, tonsillitis, Meningitis, Encephalitis, Typhoid fever, enteritis
  • Exposure to sun/ high environmental temperature for a short time

Risk Increases With

  • Malnutrition
  • Excessive clothing during fever
  • Closed room and absence of free circulation of air
  • Deficient intake of water or depletion of water through diarrhea/ vomiting
  • High humidity in the atmosphere


General Measures

  • Keep the child in a cool room
  • Give glucose – salt water drinks
  • Remove the child’s clothes and sponge with cool water. This promotes circulation in a collapsed patient and increases heat loss. Sponging should be stopped when body temperature reaches 38.5 ℃
  • Rush your child to the doctor instead of trying antipyretics like Paracetamol at home as oral drugs are of no use in hyperpyrexia.