But it's recommended that you should not burst any blisters yourself. If your burn has caused a blister, you should seek medical attention. The blister will probably remain intact, although some burns units at hospitals follow a policy of deroofing blisters.

How long does it take for a burn blister to drain?

Treating blisters

Most blisters heal naturally after three to seven days and don't require medical attention. It's important to avoid bursting the blister, because this could lead to an infection or slow down the healing process. If the blister does burst, don't peel off the dead skin.

What is the fluid in a burn blister?

The clear, watery liquid inside a blister is called serum. It leaks in from neighboring tissues as a reaction to injured skin. If the blister remains unopened, serum can provide natural protection for the skin beneath it.