Athlete's foot, also known as tinea pedis, commonly manifests in three types: vesicular, hyperkeratotic, and intertriginous. The vesicular type is characterized by blistering and scaling, typically occurring on the tips of the fingers, the palms, and the sides of the feet. Initially, the skin lesions appear as small, scattered blisters the size of a pinhead. The blister fluid is clear, and the blister walls are relatively thick. These blisters can cluster and merge to form larger blisters, eventually losing their walls to expose a honeycomb-like base and a raw, eroded surface. After several days, the blisters can dry out and flake off. As the condition progresses and exudation increases, it can develop into the intertriginous type, which primarily affects the web spaces between the fingers or toes. It is more common in people who sweat excessively, soak their feet in water, or wear rubber shoes for extended periods, particularly during the summer. The skin becomes soaked and appears whitish, with a soft surface that peels off easily, revealing a moist red eroded area with exudate, often accompanied by cracking and significant itching. When secondary bacterial infection occurs, there is typically an odor. If not promptly controlled, it can lead to secondary infections, producing pustules and ulcers, and may also lead to acute lymphangitis, lymphadenitis, cellulitis, or erysipelas. In severe or recurrent cases, it can also induce local eczematous changes and disseminated dermatophytosis.