For herpes zoster blisters, if the diameter of the blister is under 0.5 cm, such small blisters can be absorbed on their own and do not require special treatment. Large blisters with a larger diameter or blood blisters or pustules can be aspirated off with a syringe or needle and the blister skin covered on the surface without cutting it off, the vesicle skin covered on top can play a protective role to prevent bacterial infection. After the blisters are released, if there is exudation, you can use 3% boric acid solution or Chinese medicine rehabilitation new solution wet compress, with 6-8 layers of gauze, pour the solution on the gauze to not drip, each compress 20-30 minutes, 3-4 times a day, usually 2-3 days blister blister surface will be dry. After drying, apply topical antiviral or anti-infection creams, such as interferon gel, penciclovir ointment, Bactrim ointment, etc.