only if the oil of the plant is still on the skin. the drainage and weeping associated with poison ivy is not contagious and will not cause a spread to other areas. if the skin eruptions seems to be spreading it was from the original exposure to the plant oil. a large amount of oil will cause the first skin eruption about a smaller amount of oil (from clothing etc. ) may cause a rash to appear a few days later. this delay in skin eruptions is wrongly attributed to it being spread by the disease itself but it was caused by the amount of oil on the skin at the time of exposure.
can poison ivy spread from sweat