Poison Ivy, also known as rhus dermatitis, is caused from an allergic reaction to the oil resin, urushiol, found in the leaves, stems and roots of poison ivy, poison oak, and poison sumac. It is very common in the summer months. 

What is a makeup remover? The obvious answer is that a makeup remover is any substance claiming it can remove makeup. Many kinds of liquids and solvents can do this job. Most makeup removers are some sort of cleanser.