What is an Unna Boot?
An Unna boot is a special bandage used to wrap an extremity, normally the lower leg. The boot is composed of a zinc oxide-impregnated gauze and elastic wrap that is normally worn for an extended period, often 7 days at a time. Unna boots are applied for a variety of reasons including, but not limited to open wounds, swelling, and /or surgical treatment sites. The wrap reduces risk of infection, decreases tension on a wound, decreases healing time, prevents swelling, and does not require any patient-provided wound care.
Care of the Unna Boot
Keep the Unna dressing dry. If showering, you may cover with a heavy plastic bag taped at the top of the boot or purchase a cast cover from a pharmacy or home health supply store. If bathing in a tub, keep your boot out of the tub. If your boot gets wet or soiled, please contact us for further instructions.
You may continue normal daily activities, such as walking, but it is advised to AVOID heavy exertion or exercise. Keeping your legs elevated as much as possible when sitting will help with swelling.
The boot will begin to dry in 3-4 hours and may feel tighter. This is normal and will decrease as the boot dries completely.
It is normal to have some drainage on your Unna boot.
DO NOT place any objects inside your boot to relieve itching. This may cause infection or other wounds.
Do not remove the boot unless instructed to do so by your provider or their assistants.
When to Contact the Office
• Severe or increasing pain.
• Fever or chills
• Unna boot that continues to feel too tight or too loose
• Unna boot that becomes soiled, wet, or damaged
• Excessive drainage or drainage with an abnormal odor
If you have emergent questions AFTER HOURS (Monday-Thursday after 4:30pm, Friday after 11:30 am, Saturday or Sunday), please call our office to speak with the on-call dermatologist. During working hours, call the office at (704)784-5901.
