Contact dermatitis is a type of inflammation of the skin. Some symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, and swelling. The rash isn't contagious or life-threatening, but it can be very uncomfortable.
Contact dermatitis 是一种常见的皮肤病,在接触某些物质后会导致红色、发痒的斑块。有两种类型:刺激性和过敏性。当某些东西直接刺激皮肤时,就会发生刺激性接触性皮炎,而过敏性接触性皮炎是对接触皮肤的物质产生的延迟反应。常见的诱因包括毒葛、镍和香水。症状通常包括发红、脱皮、瘙痒,有时还会出现水泡。急性病例可能很严重,伴有发红、起泡和肿胀,而慢性病例可能涉及皮肤破裂、鳞状。诊断通常涉及识别和避免刺激物。治疗通常包括针对局部反应使用类固醇霜,针对广泛反应使用口服类固醇。然而,类固醇应逐渐减少,以防止反弹反应。 Contact dermatitis is a common skin condition that causes red, itchy patches after contact with certain substances. There are two types: irritant and allergic. Irritant contact dermatitis happens when something irritates the skin directly, while allergic contact dermatitis is a delayed reaction to a substance touching the skin. Common triggers include poison ivy, nickel, and fragrances. Symptoms typically include redness, scaling, itching, and sometimes blisters. Acute cases can be severe, with redness, blistering, and swelling, while chronic cases may involve cracked, scaly skin. Diagnosis usually involves identifying and avoiding the irritant. Treatment often includes steroid creams for localized reactions and oral steroids for widespread ones. However, steroids should be tapered off gradually to prevent a rebound reaction.
治疗患有类似湿疹的皮疹的患者的医生需要了解导致这种情况的所有可能原因。重要的是要考虑患者接触的东西是否会引起皮疹,特别是如果常规治疗后皮疹没有消失的话。 The doctor treating a patient with a rash resembling eczema needs to know all the possible reasons for this condition. It's important to consider if something the patient is in contact with could be causing the rash, especially if it doesn't go away with usual treatment.
Contact dermatitis 是一种常见的皮肤病,由反复接触引起过敏或刺激的物质而引发,导致过敏性接触性皮炎或刺激性接触性皮炎。 Contact dermatitis is a frequent skin condition triggered by repeated exposure to substances that cause allergies or irritation, leading to either allergic contact dermatitis or irritant contact dermatitis.
接触性皮炎是由接触过敏原(过敏性接触性皮炎)或刺激物(刺激性接触性皮炎)引起的。光毒性皮炎是由阳光引起的。
○ 体征和症状
接触性皮炎是因接触异物而引起的局部皮疹或皮肤刺激。这些可能需要几天到几周的时间才能治愈。仅当皮肤长时间(数天后)不再与过敏原或刺激物接触时,接触性皮炎才会消退。
接触性皮炎分为三种类型:(1)刺激性接触性皮炎(2)过敏性接触性皮炎(3)光接触性皮炎。刺激性皮炎通常局限于触发因素实际接触皮肤的区域,而过敏性皮炎可能在皮肤上更广泛。
过敏性接触性皮炎的常见原因包括:
Nickel, 14K or 18K gold, Chromium, Poison ivy (Toxicodendron radicans)
○ 补丁测试
斑贴测试中发现的前三种过敏原是:
Nickel sulfate (19.0%), Myroxylon pereirae (Balsam of Peru, 11.9%), Fragrance mix (11.5%)
○ 治疗
不要使用肥皂和化妆品。特别是使用防晒霜或其他化妆品可能会导致面部反复干燥或发痒,这主要发生在女性身上。如果症状仅发生在暴露在阳光下的身体部位,请减少阳光照射。
○ 治疗 - 非处方药
服用抗组胺药有帮助。西替利嗪或左西替利嗪比非索非那定更有效,但会使您昏昏欲睡。
#Cetirizine [Zytec]
#Diphenhydramine [Benadryl]
#LevoCetirizine [Xyzal]
#Fexofenadine [Allegra]
#Loratadine [Claritin]
非处方类固醇软膏可用于患处几天。
#Hydrocortisone ointment