毒橡木皮疹是对西方毒橡树植物的叶子或茎的过敏反应（毒物多元虫）。
The plant looks like a leafy shrub and can grow up to 6 feet tall. In shady areas, it can grow like a climbing vine.
叶子通常分为三组 - 尽管您可能会以五个或七个组的成绩找到它们。根据一年中的时间，该植物可能有黄色或绿色的花朵或黄绿色的浆果。
Likepoison ivyand poison sumac, poison oak releases an oil called urushiol when it sustains damage. Your skin absorbs this allergen when you touch the plant.
Around
The best way to prevent an allergic reaction is to avoid initial contact with poison oak.
Learn more about identifying poison oak and poison ivy here.
如果您以前有毒橡木皮疹，可能会出现症状
您将遇到的第一个症状是与毒橡树接触的地方的皮疹。来自乌拉希奥尔的皮疹的医学术语是toxicodendrondermatitis。
Following exposure to the oil from poison oak, you may experience the following stages of symptoms:
- 皮肤瘙痒。曝光的部位最初可能会感到发痒，或者您可能会感到刺痛。
- 皮疹。随着您的反应进展，皮疹将形成。这可能在浅色皮肤上看起来像红色或粉红色。在黑色或棕色的肤色上，皮疹可能比皮肤的周围区域看起来紫色，灰色，黑色或深色。这种皮疹将在与Urushiol直接接触的皮肤斑块中最坏。
- 水泡。水泡will begin to form within your rash. These may grow in size and begin to ooze liquid. This liquid is not contagious.
- 康复。As your blisters ooze or burst, they will begin to dry out. They will eventually form a crust once fully dry and begin to heal. This can take2至3周，在此期间，您可能仍然会瘙痒。
You may be able to reduce symptoms of poison oak rash with several treatments. These include over-the-counter (OTC) and prescription medications, as well as home remedies.
Medications
毒橡树皮疹is typically a self-healing condition. However, some medications may help reduce symptoms of itching and assist the natural healing processes.
这些包括：
- calamine lotion和其他舒缓的治疗
- antihistamines减轻瘙痒症状
- topical or systemiccorticosteroids
- 氢氧化铝凝胶，醋酸锌或氧化锌以干燥水泡
Home remedies
Most of the time, you can treat poison oak rash at home.
如果您认为自己已经与毒橡木接触，那么用大量不冷不热的水和肥皂很好地洗净身体很重要。
植物的油可以保留在织物和其他材料上，这可以给您带来另一次皮疹。您应该洗衣服以及可能与植物接触的其他任何东西。
皮疹可能发痒，刮擦的冲动可能很强烈。但是，抓挠皮疹和水泡周围会破坏您的皮肤障碍，并且cause an infection。您可以洗净的浴缸或凉爽的淋浴以减轻瘙痒。
如果您对某些东西过敏，则每次与过敏原接触时，反应都有可能变得更强大。严重的过敏反应的迹象包括：
These symptoms can be life threatening and require immediate medical attention.
毒橡树皮疹is not contagious.
Direct contact with the oil from poison oak is the only cause of allergic reactions. This may be from touching the plant itself or from touching materials that have this oil on them.
However, there is no poison oak oil in sores or blisters. You will not spread the rash by touching these and then touching other parts of your body, items around you, or other people.
