Beriberi, commonly known as beriberi, is caused by fungal infection. Common pathogens are dermatophytes, microspores, Trichophyton and other strains, which are prone to obesity, pregnancy, diabetes or immunocompromised people. The clinical manifestations are generally divided into three types, and the keratinized scale type is characterized by dryness and desquamation between the soles of feet or toes; The blister type is characterized by deep blisters with severe itching on the toes, soles or side edges of feet. Erosion type is characterized by white erosion between toes, which is more common in sweaty people. Tinea pedis is often accompanied by itching symptoms of different degrees.

Neurodermatitis, also known as lichensimplexchronicus a skin disease with localized skin nerve dysfunction, also known as lichen simplex. Similar to the so-called psoriasis and neck sore in Chinese medicine. This is a chronic skin inflammation, characterized by paroxysmal itching and lichenization of the skin. The etiology is still unclear, and it is generally believed to be related to long-term scratching, friction, neuropsychiatric factors and some external stimuli.