Most blisters do not require medical attention. The most important information to remember is never to pop or break open a blister. A blister acts as a protective covering for damaged skin and helps prevent infection. If a blister does open on its own, be sure to leave the covering in place to support further healing. Simply wash the area gently with mild soap and water, pat it dry and apply an antibacterial ointment. Cover the blister with bandage to keep it clean. Replace the dressing at least once a day. Watch for signs of infection, such as a white or yellow pus coming from the blister, redness or red streaks around the blister or an increase in skin temperature around the blister.
To avoid blisters, you need to eliminate the irritant. Some simple ways to avoid blisters are to avoid tight clothing, make sure socks and shoes fit properly, and when doing heavy work with your hands, wear work gloves.