Should you pop a blister from a burn?

No. It's best to leave it alone. The body forms that blister as sort of a natural band-aid, to provide a cushion, and a sterile field to promote healing. Eventually, the blister will pop on its own.

Unless you really need to pop it then pop it with a steroile needle carefully and then let it all drain out and put on a bandage and hange the bandages regulary, make sure you check for any signs of redness around the blister and any signs of an infection coming through.

Hope this helps, Good Luck!