Symptoms usually occur 10-21 days after contact with the chickenpox virus. Initial symptoms may include:

  • Headache
  • Fever
  • General feeling of discomfort
  • Loss of appetite
  • Cough
  • Stomach ache

Within 1-2 days after the initial symptoms, a rash develops. Characteristics of the rash include:

  • The rash usually develops on the skin above the waist, including the scalp. Exposed areas are often most affected.
  • The rash may sometimes appear on the inside of the eyelids, in the mouth, nose, throat, upper airway, voice box, rectum, or vagina.
  • At first, the rash consists of small, flat, red spots.
  • The spots become raised and form clusters of round, itchy, fluid-filled blisters on a red base.
  • The blisters usually burst to form sores which finally crusts and scabs over before healing.
  • New clusters form over 5-6 days, so for awhile there will be a variety of spots visible at the same time.
  • In healthy children, the rash usually crusts over by day 6-7. The crusts are gone within three weeks, usually without scarring. Note: Some people who are immunocompromised may have more severe cases that last longer.