Friction Blisters

Definition: A friction blister is a build up of fluid or blood between the epidermis and dermal layer of skin caused by shearing forces applied to the skin.

Causes include:

• Ill fitting shoes (socks)
• Skin moisture
• Pressure points on the foot

Treatment:

• Drainage using a sterile instrument (pin or knife cleaned with alcohol)
• Leave roof of blister intact
• Apply antibiotic dressing

Prevention:

• Reduce perspiration by applying topical antiperspirant
• Identify areas of friction and pad them with moleskin
• Check shoe fit
• Wear socks that wick away moisture (polypropylene)
• Apply Vaseline to areas of friction

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