Blister tinea versicolor is often manifested as heavy in summer and light in winter, or it develops in summer and recovers in winter, and it mostly involves adults, and the main symptoms include blisters, flaking, itching, and so on. 1. Blisters: the blisters are pinpoint-sized at the beginning, and the walls of the blisters are thick and shiny, which are not easy to break. The blisters are scattered or gathered on the side or flexion of palm and fingers, and gradually become bigger and more, neighboring blisters can be fused to form large blisters, or pustules can be formed due to secondary infection. 2. Flaking: the skin lesions develop continuously to the surrounding, and when the condition is stabilized, it is mainly manifested as flaking. 3. Patients with blister-type tinea versicolor may have obvious itching. When patients have the above symptoms, they should go to the hospital in time, and standardize the treatment under the guidance of doctors.