Blisters

TL;DR

Fluid-filled sacs on the skin resulting from friction or burns.

What are Blisters?

Blisters are small pockets of fluid that form on the upper layers of the skin, typically as a result of friction, burns, or other injuries. These fluid-filled sacs act as a cushion to protect the underlying tissue from further damage and facilitate healing. Blisters can form anywhere on the body but are most common on the hands and feet due to repetitive motion or ill-fitting footwear.

The fluid inside a blister is usually clear, but if the blister is blood-filled, it indicates deeper tissue damage. To manage blisters, it is essential to keep the area clean and dry to prevent infection. Small, intact blisters should generally be left alone to heal naturally, as the skin acts as a natural barrier to bacteria. If a blister is large, painful, or likely to burst, it can be carefully drained using a sterilized needle, after which an antiseptic and sterile dressing should be applied. It is crucial not to remove the overlying skin, as this can increase the risk of infection. For prevention, wearing well-fitting shoes and using protective padding can help reduce friction and pressure on susceptible areas.

First Aid for Blisters

• Small Blisters: Clean the area, cover with a sterile dressing, and avoid popping the blister to reduce the risk of infection.
• Large Blisters: If the blister is painful or likely to burst, clean the area with antiseptic, sterilize a needle, and gently puncture the blister to drain the fluid. Apply an antiseptic ointment and cover with a sterile dressing.

Takeaway to remember

Blisters are fluid-filled sacs that form on the skin due to friction, burns, or other damage. They act as a protective barrier for the underlying skin.

Reference

• First Aid eBook