How do I give first aid for a blister?

Treatment of blisters depends on their cause. Blisters that are symptomatic of a disease or disorder require treatment of the illness itself. Blisters caused by friction or trauma can be treated by cleansing with mild soap, applying an antiseptic, and covering the area with a sterile bandage.

If you have diabetes or bad circulation see your health care provider. With proper treatment, most minor blisters will heal without complication in a matter of days.