夏天来了，汗疱疹、痱子、脚气这三种皮肤病也是说来就来了。很多人被汗疱疹、痱子和脚气轮流单打、混合双打、混合三打…… 今天，来跟大家讲解下这三种夏天高发的皮肤问题，以及正确的应对处理办法。 痒得受不了的汗疱疹 汗疱疹通常长在手心、手指上，一长就长一片，密密麻麻的，外表看有点像一堆小水珠。 对称分布：也就是说手指一侧皮肤长了，有可能另一侧也有； 反复发作：汗疱疹很容易复发，今年长了可能明年也要长； 小朋友、年轻人容易中招：汗疱疹多见于年轻人、中年人，以及部分小朋友，老年人一般不怎么长。 得汗疱疹，不光因为汗多 汗疱疹的名称中有个"汗"字，很多人就以为跟是汗多或者汗腺分泌有问题造成的，其实这个皮肤病的罪魁祸首并不是汗，更多的是跟这些因素相关： 1.过敏反应：接触镍、铬等金属，如戴了含有这些金属的首饰、手表会出现的过敏反应；接触刺激性化学物质，比如有的人就对某些洗衣液、洗洁精中的部 分成分过敏，使用后就会出现汗疱疹。 2.真菌感染：其他部位比如足部有真菌感染的情况，也可能因为免疫交叉反应，引发手部出现汗疱疹。 3.精神压力与生活习惯：情绪波动、吸烟、日晒及睡眠不足可能诱发或加重。 汗疱疹也被认为是一种特殊的湿疹类型， ...

Core Viewpoint - The article discusses the increase in patients presenting with "small blisters" on hands and feet during the summer, primarily caused by various skin conditions, with a focus on sweat eczema as the most common cause [1][2]. Group 1: Common Conditions - The most common condition leading to "small blisters" is sweat eczema, characterized by small blisters on the palms and soles, often accompanied by severe itching [2][3]. - Other potential causes include athlete's foot, hand-foot eczema, contact dermatitis, and hand-foot-mouth disease, each with distinct characteristics and treatment approaches [3][4]. Group 2: Symptoms and Diagnosis - Patients typically experience blisters on the sides of fingers, palms, and soles, with symptoms worsening at night or with heat, leading to potential secondary infections if scratched [2][3]. - Sweat eczema is noted for its self-limiting nature, often exacerbating in summer and improving in fall and winter, with recurrent episodes leading to skin thickening and cracking [2][3]. Group 3: Treatment Approaches - Treatment for sweat eczema focuses on symptomatic relief, with options like calamine lotion for itching and topical corticosteroids for severe cases [6]. - Athlete's foot requires maintaining dry skin and may involve antifungal medications, with an emphasis on completing the full treatment course to prevent recurrence [6]. - Hand-foot eczema treatment involves avoiding irritants and may include wet dressings during acute phases, transitioning to topical corticosteroids as the condition stabilizes [6]. - Contact dermatitis treatment emphasizes identifying and removing the irritant, followed by appropriate topical or oral medications as needed [6][7].