Group 1 - The core issue of body odor, specifically axillary odor, is linked to the apocrine glands in the armpits, which secrete organic substances that are broken down by bacteria, resulting in a strong odor [2][6] - Axillary odor is distinct from regular sweat odor, being more intense and persistent, often reappearing shortly after bathing [5][4] - Genetic factors play a significant role in the occurrence of axillary odor, with a 50% inheritance probability if one parent has it, and a 75% probability if both parents are affected [7] Group 2 - Physiological factors such as hormonal changes during puberty or menstrual cycles can exacerbate axillary odor [8] - Environmental conditions like high temperatures and humidity contribute to increased sweating and bacterial growth, intensifying the odor [9] - Poor hygiene and dietary habits, particularly the consumption of spicy and fatty foods, can also increase the severity of axillary odor [10] Group 3 - Common myths about axillary odor include the belief that it is contagious, which is false as there are no transmissible pathogens involved [14] - There is a strong correlation between oily earwax and axillary odor, with 95% of individuals with axillary odor also having oily earwax [15] - The assumption that excessive sweating guarantees axillary odor is misleading, as the odor primarily arises from the interaction of apocrine gland secretions with skin bacteria [16] Group 4 - Effective methods to manage axillary odor include the use of antiperspirants, which can temporarily reduce sweat production and odor [18] - Shaving armpit hair may help reduce odor by minimizing the surface area for bacteria to thrive, although it carries a risk of skin irritation [21] - Natural remedies like applying ginger or lemon are generally ineffective and may irritate the skin, potentially worsening the odor [22] Group 5 - Daily hygiene practices, such as regular washing and keeping the armpits dry, are essential for managing axillary odor [25] - Choosing loose-fitting, breathable clothing can help reduce moisture and bacterial growth in the armpit area [26] - Dietary adjustments, including reducing sulfur-rich foods and increasing the intake of citrus fruits and leafy greens, can also help mitigate odor [27]

Group 1: Sweaty Eczema (汗疱疹) - Sweaty eczema typically appears on palms and fingers, characterized by clusters of small blisters resembling water droplets [2] - It is a type of eczema that is highly prevalent in late spring and early summer, with symptoms including intense itching, pain from blister fluid, symmetrical distribution, and a tendency to recur [3][4] - Factors contributing to sweaty eczema include allergic reactions to metals, fungal infections, and lifestyle factors such as stress and poor sleep [4][5][6] - Treatment is generally self-limiting, with symptoms resolving in about two weeks if triggers are avoided [7] Group 2: Heat Rash (痱子) - Heat rash, also known as prickly heat, occurs when sweat cannot evaporate due to high temperatures and humidity, leading to inflammation [23][24] - Adults can also suffer from heat rash, especially those in high-temperature jobs or with certain health conditions [25][26] - The most common types of heat rash include white, red, and pustular types, each with distinct characteristics [27][28] - Proper management involves keeping the skin cool and dry, using mild cleansing products, and potentially applying calamine lotion [30][31][32] Group 3: Athlete's Foot (脚气) - Athlete's foot is a fungal infection characterized by itching, peeling, and blisters, often exacerbated in hot and humid conditions [35] - It is important to differentiate between foot odor and athlete's foot, as not all foot odor indicates a fungal infection [36] - Common misconceptions about treatment include the ineffectiveness of vinegar and iodine foot soaks, which do not adequately address the fungal infection [38][39][40] - Effective treatment requires antifungal medications, and adherence to the full treatment course is crucial to prevent recurrence [44]