The blisters in the middle of the body are considered to be caused by contact dermatitis, herpes and inflammation of hair follicles, which can be treated by good dietary habits, oral antiviral drugs and topical antibacterial drugs as prescribed by the doctor. 1. Contact dermatitis: patients may like to eat spicy and stimulating food, which may lead to the phenomenon of blisters in the middle of the human position, considering irritant contact dermatitis. It is recommended that the patient usually eat some fruits and vegetables and light food, to develop good eating habits. 2. Herpes: Patients with clusters of small blisters in the middle of the body are considered to be herpes simplex caused by herpes simplex virus infection. Patients can follow the doctor’s instructions for topical or oral antiviral drug treatment, such as acyclovir, vasiclovir, etc.. 3. Inflammation of hair follicles: Inflammation of hair follicles due to bacterial infection in the middle of the body can easily cause blisters in the middle of the body. You can use antibacterial creams as prescribed by your doctor, such as erythromycin ointment and fusidic acid ointment. When the phenomenon of blisters in the middle of the patient, it is recommended to go to the hospital to find out the cause of the disease, and according to the cause of the disease to follow the doctor’s advice to take medication.