Red blisters on the body may be eczema, papular urticaria, chickenpox and other diseases, need to take medication for the cause of the disease and other ways to improve. 1. eczema: for eczema patients with red blisters, you can follow the doctor’s instructions to apply glucocorticoid drugs, such as dexamethasone, hydrocortisone cream, etc., severe oral antihistamine drugs such as loratadine treatment. 2. Pemphigus urticaria: red blisters on the body may be the manifestation of pemphigus urticaria, you can use glucocorticoid drugs under the guidance of the doctor, such as dinexed, dexamethasone cream, and so on. For the rash that is not easy to subside, oral cetirizine, loratadine and other antihistamines. 3. chickenpox: chickenpox can also lead to red blisters on the body, generally can be self-healing, can be combined with the condition of oral acyclovir and other drugs antiviral therapy, if the itching symptoms, you can under the guidance of the doctor orally loratadine, imipramine and other antihistamines, pay attention to avoid scratching and stimulation of blisters, to avoid the occurrence of infection. There are many causes of red blisters on the body, it is recommended that the patient go to the hospital, to clarify the cause of the disease, standardized treatment under the guidance of the doctor.