After exposure to the leaves, stems, or roots of a poison ivy plant, children develop symptoms of poison ivy within 8 hours to a week or so, including:
- an intensely itchy rash
- red bumps that often are in a straight line or streaks, from where the poison ivy plant had contact with your child's skin
- vesicles and blisters that are filled with fluid
Other characteristic signs and symptoms of poison ivy are that the rash will worsen over days or weeks without treatment with steroids, the rash may not go away for up to three weeks without treatment, many children will have worsening symptoms with each exposure, and that some areas of a child's skin that had less exposure to the poison ivy plant will get the rash later than others.
Sources:
Habif: Clinical Dermatology, 4th ed.
Rhus (Toxicodendron) dermatitis. Tanner TL - Prim Care - 01-JUN-2000; 27(2): 493-502


