Plants And Animals You Should Never Ever Touch

18. Poison Oak

Poison Oak

This plant is found throughout North America, and it’s best to steer clear of it. Poison oak releases an oil called urushiol when it’s touched, and this oil can cause an allergic reaction. Symptoms include itching, swelling, and blistering of the skin. If you come into contact with poison oak, wash the affected area immediately with soap and water.