If possible, try to keep the blister intact. Do not try to pop or drain a blister that hasn’t popped on its own. It’s important not to put pressure on the blister, so avoid any shoes that may be too tight. If you’re going to put on shoes, make sure to apply a bandage (some band-aids are designed specifically for covering blisters) to the area first.
If the blister popped on its own, clean it with warm water soap (do not use alcohol or hydrogen peroxide on the blister). Once the area is clean, apply an over-the-counter antibiotic cream to the area and apply a bandage over the blister. These simple steps can prevent an infection from occurring.
You should only drain a blister if it’s very large, painful, or affects your ability to move. In this case, you should sterilize a needle with alcohol and then make a small hole in the blister to let it drain. You may need to carefully squeeze the blister to help it drain fully. Once the blister has drained, rinse out the area with soap and warm water before applying antibiotic cream to the area and placing a bandage over it.
You mustn’t keep the same bandage on your blister day in and day out. You should check the blister every day to make sure it isn’t infected. You should clean the area daily with soap and water and then reapply another bandage.