allergic reaction

简明释义

变态反应;

英英释义

例句

1.She carries an EpiPen in case of a severe allergic reaction.

她随身携带一支肾上腺素笔，以防严重的过敏反应。

2.After eating peanuts, she experienced an allergic reaction.

吃完花生后，她出现了过敏反应。

3.The patient was treated for an allergic reaction to a medication.

患者因对一种药物的过敏反应而接受治疗。

4.His doctor explained that an allergic reaction could be life-threatening.

他的医生解释说，过敏反应可能危及生命。

5.He developed an allergic reaction after touching the plant.

他在接触植物后出现了过敏反应。

作文

Allergic reactions are a common health issue that many people face today. An allergic reaction refers to the body's immune response to a substance that is typically harmless to most people, such as pollen, dust mites, or certain foods. When someone with allergies comes into contact with these substances, their immune system mistakenly identifies them as threats and responds aggressively. This can lead to a variety of symptoms, ranging from mild to severe. For example, a person may experience sneezing, itching, or rashes, while others may suffer from more serious reactions like difficulty breathing or anaphylaxis.Understanding what triggers an allergic reaction is crucial for managing allergies effectively. Common allergens include food items like peanuts, shellfish, and dairy, as well as environmental factors such as mold, pet dander, and insect stings. Each individual may have different sensitivities, which makes it important to identify personal triggers through testing or observation. Keeping a diary of food intake and environmental exposures can help individuals pinpoint what causes their allergic reactions.The treatment for an allergic reaction varies depending on the severity of the symptoms. For mild cases, over-the-counter antihistamines can provide relief by blocking the action of histamine, a chemical released during an allergic response. However, in cases of severe reactions, such as anaphylaxis, immediate medical attention is required. An injection of epinephrine can be life-saving and is often carried by individuals who know they have severe allergies.Additionally, prevention is key in managing allergies. For those with known allergens, avoiding exposure is the best strategy. This might mean reading food labels carefully, using air purifiers at home, or taking medications before exposure to allergens. Education about allergies should also extend to friends and family, so they can understand the importance of avoiding certain foods or environments that could trigger an allergic reaction.In conclusion, allergic reactions are significant health concerns that require awareness and management. By understanding the triggers, recognizing symptoms, and knowing how to respond, individuals can lead healthier lives despite their allergies. Whether it's a simple sneeze or a life-threatening situation, being prepared and informed can make all the difference in handling allergic reactions effectively.

过敏反应是今天许多人面临的常见健康问题。过敏反应指的是身体对一种通常对大多数人无害的物质（如花粉、尘螨或某些食物）的免疫反应。当一个有过敏的人接触到这些物质时，他们的免疫系统错误地将其识别为威胁并做出激烈反应。这可能导致各种症状，从轻微到严重。例如，一个人可能会感到打喷嚏、瘙痒或皮疹，而其他人可能会遭受更严重的反应，如呼吸困难或过敏性休克。了解是什么引发了过敏反应对于有效管理过敏至关重要。常见的过敏原包括食物如花生、贝类和乳制品，以及环境因素如霉菌、宠物皮屑和昆虫叮咬。每个人可能对不同的物质有不同的敏感性，这使得通过检测或观察来识别个人触发因素变得重要。记录饮食和环境暴露的日记可以帮助个人找出导致他们过敏反应的原因。对过敏反应的治疗因症状的严重程度而异。对于轻微的病例，非处方抗组胺药可以通过阻止在过敏反应中释放的组胺的作用来提供缓解。然而，在严重反应的情况下，如过敏性休克，需要立即医疗救助。注射肾上腺素可以挽救生命，通常由知道自己有严重过敏的人携带。此外，预防是管理过敏的关键。对于已知过敏原的人，避免接触是最佳策略。这可能意味着仔细阅读食品标签、在家中使用空气净化器，或在接触过敏原之前服用药物。关于过敏的教育也应该扩展到朋友和家人，以便他们理解避免某些食物或环境的重要性，这些食物或环境可能会引发过敏反应。总之，过敏反应是需要关注和管理的重要健康问题。通过了解触发因素、识别症状和了解如何应对，个人可以在过敏的情况下过上更健康的生活。无论是简单的打喷嚏还是危及生命的情况，做好准备和了解都可以在有效处理过敏反应中产生重大影响。