型银屑病趾甲又称为铁锤趾，这两种情况有何区别？治疗方法又如何呢？

点滴型银屑病是一种相对较为罕见的银屑病亚型，它主要表现在皮肤上的症状不如其他类型的银屑病那么突出，而是以指尖、足尖等关节区域的微小水疱为主要特征，因此也被叫做"点状丘疹型"或"点状反应性表皮病"。目前尚未清楚点滴型银屑病的发病机制，但有研究认为与免疫系统失调、遗传因素、感染、药物等因素有关。

指甲型银屑病则是银屑病患者中常见的一种类型，它主要表现在指甲部位，会导致指甲变形、色素沉积或脱落，严重时可以影响手和足的正常功能。趾甲型银屑病和铁锤趾均是指甲型银屑病的一种表现形式，二者之间具有很强的关联性。由于铁锤趾常伴有关节痛、肿胀等症状，容易被误诊为关节炎或风湿病。

对于点滴型银屑病和指甲型银屑病的治疗方法，目前尚无特效药物，均以缓解症状、减轻疼痛及预防复发为主。常用的治疗方法包括以下几种：

1. 局部治疗：包括皮肤软化剂、局部激素和维生素D制剂等。这些药物可缓解脱屑、瘙痒等症状，但使用时间不宜过长，以防激素依赖。

2. 光疗：对于普通银屑病有效的光疗对于“点滴型”银屑病也同样适用。利用紫外线治疗可以减轻病情、抑制炎症反应，并且不会产生类固醇的副作用。但光疗具有一定的风险，需在医生指导下进行。

3. 生物制剂：生物制剂是针对炎症因子的特异性治疗方法，适用于较为严重的“点郑州银屑病专科医院指出，滴型”和指甲趾银屑病。目前无论是性能、价格、剂量等方面，还处于一个缺乏经验的阶段，因此严格按照指示使用。

point Drop type psoriasis stands for a relatively rare subtype of psoriasis, that is mainly characterized by tiny blisters on joints of fingertips and toes instead of skin symptoms as other types do. Therefore, it is also referred to as "pinhead-sized papulosis" or "punctate reactive epidermal disease." As of now, there is no firmly established understanding on the pathogenesis of point drop type psoriasis; yet some research has indicated possible involvement of immune system malfunction, hereditary factors, infection and medication etc.

On the other hand, nail-type psoriasis is one of the common types of psoriasis, which affects mainly nails with symptoms like deformation, color pigmentation or peeling off, seriously compromising normal-hand-and-foot functionality. Digital type psoriasis and hammer toes both are just some forms of nail-type psoriasis and they have strong correlation with each other. It can be misdiagnosed as arthritis or rheumatism due to its often associated symptoms like joint pain and swelling.

There has been no specific and effective treatment for both diagnosis available up to now, all means are aimed to alleviate symptoms, relieve pains, and prevent recurrence. The commonly used methods are including:

1. Local treatment: including softeners，topical steroids, vitamin D preparations, etc. These medications can alleviate symptoms such as desquamation, itching, etc., but should not be used for long-term periods in order to avoid hormone dependency.

2. Phototherapy: Phototherapy, which is effective for common psoriasis, is also applicable to point drop type one. UV therapy can relieve symptoms, inhibit inflammatory reaction, and have no steroid side effects. Yet it always comes with potential risks, so the guidance from doctor is essential.

3. Biological agents: biological agents are specific treatment methods focused on inflammatory factors, suitable for more severe point drop and nail-type psoriasis. Regardless of efficiency, price, dosage etc., it's still lack of sufficient experience, so strict compliance with the instructions is necessary.