The cause of sweat blisters may be related to localized allergies, mental as well as dermatophyte infections. The small blisters of herpes perspiration (known medically as blisters) are generally not recommended to be broken on their own, otherwise secondary infections may occur. Sweat herpes is a skin disease that occurs on the hands or feet with blisters as the manifestation, belongs to a kind of eczema, the clinical manifestation is the appearance of intense itching blisters on the skin, often symmetrically distributed. If the skin appears small blisters of herpes sweat patients, with the growth of time, the small blisters on the skin will be naturally absorbed, dry, and gradually healing, so it is generally not recommended to break the small blisters, or there may be secondary infection. It is usually treated with antihistamines such as loratadine, combined with topical hormonal creams such as halometasone. For patients with sweat herpes who have small blisters on their skin, it is recommended to consult a doctor in the hospital.