There are three common plants that can cause rashes: poison ivy, poison oak and poison sumac.
These plants can cause an allergic reaction in nearly 85 percent of the population. They are found in different parts of the country: poison ivy in the East and poison sumac in the West.
To be allergic to these plants, your child must first be “sensitized” to the oils. This means that the next time there is contact with the plant, a rash may occur.