They may be scattered over large areas, mainly the trunk, and on the arms and legs. Blisters collapse within 24 hours and form scabs. New crops of blisters erupt for up to 5-7 days. Adults have additional symptoms that resemble influenza. Live attenuated vaccine is currently available in the United States and Canada.
Treatment is directed toward relieving symptoms.
Keep the patient as cool as possible as heat and sweat trigger itching. Keep the nails short to discourage scratching, which can lead to secondary infection. Bathe often with soap and water. Preparations containing lidocaine and pramoxine are least likely to cause allergic skin reactions. Follow package instructions.