In one sentence, describe what the following article is about:

In rare cases, someone may be allergic to the plant or to one of the chemicals released. Allergic reactions can be life-threatening. Immediate medical attention is warranted. Call 911 or go to the emergency room right away if you see one of the following symptoms of an allergic reaction:  Difficulty breathing, wheezing, or feeling like your throat is tightening. A tight feeling in your chest that makes it hard to breathe. Swelling in your mouth area, including your lips or tongue. A rash that extends beyond the exposed area, and can be all over the body. Stomach upset, cramping, vomiting, or diarrhea, can sometimes be part of an allergic reaction. Your doctor may be able to help guide you by prescribing topical medications or suggesting ways to treat the symptoms specific for young children. If the areas of skin exposed to the plant are widespread, or if your symptoms do not improve in 24 hours, contact your doctor. Your doctor may prescribe prescription strength topical agents to treat the exposed areas, or stronger oral products to help resolve the reaction systemically. If the areas have been scratched and the skin is broken, it is possible for an infection to set in. If you have areas of broken skin that are warm to the touch, draining pus, or more inflamed than the surrounding areas, then you may be developing an infection. Call your doctor right away if you experience these symptoms or if you have a fever. Your doctor may prescribe a topical antibiotic cream or ointment, or may want you take a course of oral antibiotics.

Summary:
Seek immediate medical attention if allergic symptoms develop. Recognize an allergic reaction. Contact your pediatrician if a young child is exposed. Call your doctor if your symptoms are severe. Seek medical help if the areas look infected.