Small blisters on the back

The appearance of small blisters on the back is caused by tinea versicolor, which occurs in sweaty areas such as the chest, abdomen, upper arms, back, and neck, and sometimes also on the face. The rash initially appeared as small spots, mostly around the mouth of the hair follicle, and then gradually expanded to form patches of varying sizes and colors ranging from pale white to dark brown, with fine furfur-like scales visible on it. The skin lesions develop with the prolongation of time, and the spots of pigment loss can be formed over time, which is not easy to subside. Tinea versicolor is rarely an inflammatory response because fungi only parasitize in the stratum corneum of the skin. Occasionally, itching may occur when skin lesions are active.

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