You’re going to need an ocean, of calamine lotion ….

Poison ivy is the number one outdoor skin allergy in the world and grows in every state in the country except California, Alaska, and Hawaii.

Now, local doctors say it’s more potent than ever, and it boils down to the air we breathe. With more carbon dioxide in the air today, the leaves grow larger, making the allergy-causing oils, supercharged.

It takes less than a grain of salt to cause red, itchy blisters that can last for weeks. Dr. Daniel Aires, director of dermatology at the University of Kansas Hospital, said he has seen more cases of poison ivy in his practice. kctv5, 17 Jun 2015