Washing off the oil may reduce your chances of getting a poison ivy rash. If you develop a rash, it can be very itchy and last for weeks.
You can treat mild cases of poison ivy rash at home with soothing lotions and cool baths. You may need prescription medication for a rash that's severe or widespread, especially if it's on your face or genitals.
Poison ivy rash often appears in a straight line because of the way the plant brushes against your skin. But if you develop a rash after touching a piece of clothing or pet fur that has urushiol on it, the rash may be more spread out. You can also transfer the oil to other parts of your body with your fingers.
The reaction usually develops 12 to 48 hours after exposure and lasts two to three weeks. A poison ivy plant typically has three leaflets branching off a single stem. It may grow as a low plant or bush or as a vine. Low-lying poison ivy plants are usually found among groups of weeds and other plants. Poison ivy leaves vary greatly in their shape, color and texture. Some leaves have smooth edges, while others have a jagged, tooth-like appearance.
In the fall, the leaves may turn yellow, orange or red. Poison ivy can produce small, greenish flowers and green or off-white berries. The poison sumac plant has smooth-edged leaves and can grow as a bush or tree.
Unlike poison ivy and poison oak, it doesn't grow in a three-leaf-per-stem pattern. Poison ivy rash is caused by an allergic reaction to an oily resin called urushiol. It's found in poison ivy, poison oak and poison sumac. This oily resin is very sticky, so it easily attaches to your skin, clothing, tools, equipment and pet's fur.
You can get a poison ivy reaction from:. Pus that oozes from blisters doesn't contain urushiol and won't spread the rash. But it's possible to get poison ivy rash from someone if you touch plant resin that's still on the person or contaminated clothing. Your risk of a rash is increased if you participate in outdoor activities that put you at higher risk of exposure to poison ivy, poison oak and poison sumac:.
If you scratch a poison ivy rash, bacteria under your fingernails may cause the skin to become infected. See your doctor if pus starts oozing from the blisters. Your doctor might prescribe antibiotics. Serious difficulty breathing and inflammation of the lining of the lungs may result from inhaling urushiol. You can get a rash from poison ivy any time of the year.
You can expect permanent results in all but one area. Do you know which one? If you want to diminish a noticeable scar, know these 10 things before having laser treatment. Having acne can feel devastating for a teenager.
Here are 5 things you can do to help your teen. Find out what helps. If your child develops scabies, everyone in your household will need treatment. Follow this advice to treat everyone safely and effectively. We're helping you achieve YourHealthiestSkin from head to toe.
Most people develop an itchy, red, and blistering rash. The blisters crust over, and the rash clears in 2 to 3 weeks. The rash will clear without treatment, but it can be extremely itchy until it clears completely. The intensity of the itch and severity of the rash can differ from person to person. Some people develop 1 or 2 small rashes.
Others develop rashes all over. This happens because you either:. Got urushiol the oil from these plants that causes the rash on more than one area of your skin. Typically, the skin with the most oil on it develops a rash first. Skin with less oil tends to react later. Touched something that still has urushiol on it, such as the unwashed clothing you were wearing when you brushed up against one of these poisonous plants.
Many people also mistakenly believe that when they touch their rash, they can spread the rash from one part of their body to another. You cannot spread the rash. If you have oil from the plant on your skin, you can spread the oil for a short time. Your skin absorbs the oil quickly, so you can only spread the oil from one part of your skin to another for a short amount of time. Previous rash from poison ivy, oak, or sumac: The rash tends to last 1 to 14 days before it clears on its own.
0コメント