What are the symptoms of poison oak?
Unfortunately, many people don't actually notice that they've been exposed to poison oak, due to the fact that the symptoms don't usually appear immediately – in fact, it can take up to around 48 hours for them to appear. This is bad news, because once the rash appears it's too late to do anything about it. If, on the other hand, you notice immediately when you've come into contact with poison oak, you can sometimes prevent an allergic reaction if you respond to it quickly enough. The delayed appearance of the symptoms, however, means that your only hope of doing this is if you actually see the contact occurring.
When you touch a poison oak, your skin picks up some of the toxic oil contained in it. This is called “urushiol”, and it provokes an allergic reaction in the majority of people, known as urushiol-induced contact dermatitis. It is not the plant itself, but rather the oil, that causes the familiar symptoms of poison oak – and this means that you don't necessarily need to have been exposed to poison oak in order to suffer the rash. You can instead pick up the oil from any number of things that could be carrying it. For example, cats are often guilty culprits, having brushed agains the plant and carried the oil into your home on their fur. From there, they can transfer it directly on to your skin, or on to furniture or clothes for you to pick it up at some later date. No matter how the oil is transferred to your skin, it will cause the same reaction as if you had physically touched the poison oak plant.
This means that no matter how diligent you've been about making sure that you avoid poison oak and eliminating it from your surroundings, you can't rule out the possibility of a rash being from poison oak, as you could have unknowingly been exposed to the urushiol via a secondary carrier. So how do you recognize the symptoms of poison oak exposure?
Most people initially notice a flushed, red patch of skin. The skin will appear irritated and inflamed, and the rash will spread quite quickly as the oil that has been absorbed begins to take effect. Because different amounts of urushiol are normally absorbed in different places (and also because the poison can spread internally once it gets into the system), another common indication is the appearance of the rash in various places on the body. If you haven't been aware of your poison oak exposure, it's also very likely that you have unknowingly spread the oil to various parts of your body through touch, by touching the affected area while the urushiol was still on the skin's surface, and transferring it to anything else that you touched once it was on your fingers.
The rash will usually be raised and bumpy, and often there will be blisters filled with a clear fluid. And of course, the most common symptom is the itching! The skin may also feel raw, with a burning sensation. Scratching will not spread the rash once the oil no longer remains on the skin's surface, but sufferers are generally advised to refrain from scratching in order to prevent further irritation or even infection of the skin. If you find the itching unbearable, there are a number of natural and over-the-counter remedies to help cool and soothe the affected areas.
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