BLISTERS FORM UNDER the epidermis (the skin’s top layer) as a sac filled with clear liquid or blood ... the blister is large and painful, you can drain it. “The best way to approach a blister ...

Allow fluid to drain out, but avoid squeezing the blister. This can cause trauma to the wound and may introduce bacteria from your fingers into the wound. Cover the blister with an antibiotic ...

An uninfected blister looks like a bubble filled with clear fluid or blood. When skin is pinched, rubbed, or otherwise injured, fluid or blood leaks in from surrounding tissues to protect the skin ...