6 doctors weighed in:

How can you treat a blood blister?

6 doctors weighed in
Dr. Jennifer Haley
Dermatology
4 doctors agree

In brief: Leave or release

If the pressure is unbearable, clean it and a sterile needle with some alcohol and puncture it from the side to release the blood.
Do not remove the roof as this will act as a natural dressing until the skin underneath heals and pushes this dead skin off. I recommend aquaphor and a bandage for 24 hrs after puncturing. And do not touch it if you are diabetic and it is on your foot - get checked.

In brief: Leave or release

If the pressure is unbearable, clean it and a sterile needle with some alcohol and puncture it from the side to release the blood.
Do not remove the roof as this will act as a natural dressing until the skin underneath heals and pushes this dead skin off. I recommend aquaphor and a bandage for 24 hrs after puncturing. And do not touch it if you are diabetic and it is on your foot - get checked.
Dr. Jennifer Haley
Dr. Jennifer Haley
Thank
Dr. David Hardin
Wound care

In brief: Protect it

An unpopped blister represents a closed sterile environment.
Yes on occasion one can become infected then it is time to open it, however the risk of infection in a dressed open wound is still higher than that of an intact blister. The blister will gradually resolve with time.

In brief: Protect it

An unpopped blister represents a closed sterile environment.
Yes on occasion one can become infected then it is time to open it, however the risk of infection in a dressed open wound is still higher than that of an intact blister. The blister will gradually resolve with time.
Dr. David Hardin
Dr. David Hardin
Thank
Get help from a real doctor now
Dr. Christopher Crosby
Board Certified, Dermatology
12 years in practice
93K people helped
Continue
108,000 doctors available
Read more answers from doctors