Exposure to poison oak can cause a red, bumpy rash that makes it difficult to focus on anything other than finding relief for the intense itching. Severe reactions intensify symptoms and increase the duration of the rash. While most cases of...
Poison oak contains a substance called urushiol that causes contact dermatitis. Urushiol is a gooey oleoresin produced in the stems, roots, leaves and flowers of the poison oak plant. Contact dermatitis refers to a skin inflammation caused by...
Poison oak leaves contain urushiol oil. When the oil has contact with skin, a reaction occurs. Signs and symptoms include severe itching, discomfort, swelling and a red or pink rash. According to the Mayo Clinic, the rash can appear 12 to 48 hours...
Poison oak is a plant which contains an oily resin called urushiol. If this resin is allowed to make contact with your skin, it can cause an allergic reaction which causes a rash. If you come into contact with poison oak, the best treatment is to...
Poison ivy and poison oak plants contain an oil called urushiol. Urushiol, found not only in the leaves of the plant but also in the stems and roots, results in an allergic reaction and produces an itchy rash. Itching, redness and blisters may...
Poison oak is a plant that is native to the West Coast and Southern sections of the United States. The plant grows in either a shrub or vine formation; its yellow or green flowers may include white berries . Poison oak leaves contain an oil called...
Poison oak is a plant that can induce a red, itchy rash when you're exposed to it. The plant is primarily located on the West Coast and has a telltale three-leaf configuration, much like poison ivy, according to the National Institutes of Health....
Poison oak is a plant that is identified by three leaves. In most cases the middle leaf is the longest. It can grow as a vine or a shrub. In some areas the plant may have yellow or green flowers and clusters of green-yellow or white berries. The...
Poison oak or sumac poisoning is an allergic reaction caused by physical contact to poison oak or poison ivy plants, according to MedlinePlus, an online service of the National Institutes of Health. Sap from these plants can come in direct contact...
Poison oak is a plant which, similar to poison ivy and poison sumac, commonly causes a rash as a result of contact with a chemical which all three plants contain. The rash is caused by an allergic reaction that occurs in many people. It can cause...
Direct skin contact with poison oak results in contact dermatitis. The sap of the poison oak plant contains an oil called urushiol that causes an allergic reaction in humans. The symptoms of an allergic reaction to poison oak is an itchy rash with...
The poison oak bush has shiny leaves that appear in groups of three. Contact with a poison oak plant is very irritating to the skin. The oily sap it emits causes skin outbreaks. Anywhere the skin wipes against the oil of the poison oak, there may...
Poison oak rash is a type of allergic skin rash that causes contact dermatitis. The poison oak's leaves, stems and roots contain an oily substance called urushiol; when urushiol comes in contact with skin, a rash forms. MayoClinic.com states that...
Poison oak is a plant with three leaflets that appear on a single stalk and grow in bushes. These plants, like poison ivy and sumac, contain an oil called urushiol, which causes an allergic reaction on the skin, creating an itchy, inflamed rash....
Before you set off on your trip, take the time to become familiar with the vegetation found on your route. Buy a small book that lists the names and photos of toxic plants. Mark the pages of plants that grow in the region of your backpacking trip...
Poison oak, as well poison ivy and poison sumac, cause allergic contact dermatitis reactions in as many as seven out of 10 people, according to the the Children's Hospital of Philadelphia. The chemical urushiol causes itching, rash and blisters to...
As poison ivy creeps up in the central and eastern U.S., poison oak is the bane of many an outdoor traveler or worker on the West Coast. Extremely common in some places, poison oak also comes in a diversity of growth forms, and its foliage easily...
A poison oak rash is the result of being exposed to sap from the poison oak plants. This oily sap is on the leaves, stems, and roots of these plants. Poison oak causes contact dermatitis, which is an allergic reaction that causes the skin to...
Identifying poison oak is the first thing you should do to avoid exposure. The leaves are similar to those grown on an oak tree with rounded tips, and they are slightly larger than poison ivy leaves. Three leaflets appear on a poison oak plant,...
Poison ivy is a perennial plant, also known as Toxicodendron radicans, that produces a toxic oily resin called urushiol. If you touch any part of the plant, the oil will cause a rash, or contact dermatitis, characterized by itching, redness and...
The conditions, poison ivy and poison oak, typically refer to a rash that occurs when skin comes in contact with the poison ivy and poison oak plants. An oily resin, known as urushiol, is what makes these plants toxic. The rash creates itchy, red...
Poison oak and its cousins, poison ivy and poison sumac, all release the oil urushiol from every part of the plant. This oil is extraordinarily powerful; even a billionth of a gram can cause a rash for most people. A quarter of an ounce would...
Poison oak as a member of the plant genus Toxicodendrons, along with poison ivy and poison sumac. In the United States, two distinctive species of poison oak are present: eastern poison oak and western poison oak. While poison oak species are...
Triggered by an allergic reaction to the plant oil called urushiol, poison ivy rashes produce a severe prolonged itching that will not stop. Poison Oak Rash.net states that about 80 percent of the general population will be allergic to urushiol....
During the warmer months of the year, many people head out of doors for exercise. Walking, hiking and running in natural environments are good ways to build stamina, enjoy nature, and get away from the hustle and bustle of day-to-day life....
Exposure to poison oak causes unpleasant symptoms in the 50 to 70 percent of people who are sensitive to it, but the culprit is an oil rather than a poison, according to the National Institutes of Health. Toxicodendron plants--poison ivy, poison...
Small red bumps on your child's leg can develop suddenly, and depending on the cause, may produce discomfort, such as itching and mild pain. It is important to educate yourself about the possible triggers and causes of red bumps developing on your...
Always watch out for poison oak when you go into the wilderness. It has a distinctive three leaf pattern--the source of the old rhyme "leaves of three, leave them be"--and if you spot it, keep your distance. It also helps to wear clothes that...
Allergy symptoms attack because the body's immune system overreacts to pollen. It's sometimes hard to tell whether allergies are present because some symptoms are similar to cold symptoms. They include a scratchy throat, coughing, sneezing, itchy...
