Is It OK to Pop Blisters?
Generally, do not pop blisters. The intact skin provides natural sterile protection while new skin forms underneath. However, large or painful blisters that interfere with daily activities can be safely drained with proper sterile technique. Never pop burn blisters, blood blisters, or blisters that may be infected - see a doctor for these.
Key Takeaways
- Blisters form when friction, heat, or irritation separates skin layers and fluid accumulates to cushion and protect the damaged area.
- Blood blisters contain blood, not clear fluid, and should never be popped as they are closer to blood vessels.
- Burn blisters are extremely infection-prone and require medical attention.
Explanation
Blisters form when friction, heat, or irritation separates skin layers and fluid accumulates to cushion and protect the damaged area. The fluid (serum) is sterile, and the overlying skin creates a natural bandage. Popping removes this protection and introduces infection risk.
Most blisters heal on their own within 1-2 weeks. Keep the area clean and covered with a loose bandage. If the blister pops naturally, keep the loose skin in place as a natural covering, clean the area, apply antibiotic ointment, and bandage.
If you must drain a large, painful blister: sterilize a needle with rubbing alcohol, make a small puncture at the edge, gently press out fluid, leave the skin intact as a protective cover, apply antibiotic ointment, and cover with a bandage. Never remove the overlying skin entirely.
Things to Know
- Blood blisters contain blood, not clear fluid, and should never be popped as they are closer to blood vessels.
- Burn blisters are extremely infection-prone and require medical attention.
- Signs of infection include increased pain, spreading redness, pus, fever, or red streaks.