Just like the blisters of chickenpox, the blisters in shingles eventually burst, and the area starts to ooze. The blisters will then crust over and heal. Before the blisters crust over, the VZV virus can be spread to anyone who is not immune to chickenpox through vaccination or previous infection.

How long do shingles blisters take to burst?

Within the next 1 to 5 days, a red rash will normally form around the sensitive area. A few days later, fluid-filled blisters will develop at the site of the rash. The blisters will ooze before drying up, typically within 10 days of appearing. At this point, scabs will form on the skin, tending to heal within 2 weeks.

How do you dry out shingles blisters?

Put cornstarch or baking soda on the sores to help dry them out so they heal faster. Do not use thick ointment, such as petroleum jelly, on the sores. This will keep them from drying and healing. To help remove loose crusts, soak them in tap water.