Objective: To treat minor burns

Which of the following solutions is more sound in terms of naive physics reasoning?

Possible answers:
1). Just soak a small face cloth or paper towel and apply vinegar to the burn till the skin feels cool. Apply it immediately before the burn and it will ease the pain and prevent a blister.
2). Just soak a small face cloth or paper towel and apply vinegar to the burn till the skin feels cool. Apply it immediately after the burn and it will ease the pain and prevent a blister.
2).