January 2019

Blisters are pockets of fluid that occur under the top layer of your skin. These fluid pockets are usually filled with pus, blood, or serum. Blisters may itch or hurt and can appear as a single bubble or in clusters.

The most common types of blisters are friction blisters. This type of blister may be caused by wearing shoes that are too tight. Friction blisters can also occur on the hands. A change in temperature may also cause blisters on the feet. In the freezing air, frostbite on your toes can lead to blisters, as well as sunburn from hot weather.

The best way to treat a blister is to keep it clean and dry. Most blisters will get better on their own. Once the skin absorbs the fluid within the blister, it will flatten and eventually peel off. You should avoid popping your blister unless you podiatrist does it for you. Additional treatment options include applying an ice pack to the blister or using over-the-counter blister bandages to cover the affected area.

If your blister becomes discolored, inflamed, or worsens it is advised that you speak to your podiatrist. Blisters that are yellow, green, or purple may be infected and require immediate medical attention. Blisters that are abnormally colored may be a sign of a more serious underlying health condition such as herpes.

Research has shown blisters to be the most common medical condition among marathon runners. This may be a result of continued friction caused from the sock or shoe that is worn while running. As the skin becomes gradually damaged, the body creates a bubble containing fluid to act as a natural protectant. Research has shown similarities between people who commonly get blisters. These similarities may include performing vigorous activities that may consist of repetitive force, such as jumping and running; shoes that may fit incorrectly; or possibly from feet that have an unusual shape. There are measures that may be taken to possibly prevent blisters, including wearing shoes that are comfortable and fit properly, applying powder in shoes and socks, or taping the feet where a blister may occur. If you have a blister that is recurring and causes pain and discomfort, speak with a podiatrist who can offer proper prevention and treatment solutions.

Blisters are prone to making everyday activities extremely uncomfortable. If your feet are hurting, contact John M. Fanelly, DPM of Northeast Philadelphia. Our doctor can provide the care you need to keep you pain-free and on your feet.

Foot Blisters

Foot blisters develop as a result of constantly wearing tight or ill-fitting footwear. This happens due to the constant rubbing from the shoe, which can often lead to pain.

What Are Foot Blisters?

A foot blister is a small fluid-filled pocket that forms on the upper-most layer of the skin. Blisters are filled with clear fluid and can lead to blood drainage or pus if the area becomes infected.

How Do Blisters Form?

Blisters on the feet are often the result of constant friction of skin and material, usually by shoe rubbing. Walking in sandals, boots, or shoes that don’t fit properly for long periods of time can result in a blister. Having consistent foot moisture and humidity can easily lead to blister formation.

Prevention & Treatment

It is important to properly care for the affected area in order to prevent infection and ease the pain. Do not lance the blister and use a Band-Aid to provide pain relief. Also, be sure to keep your feet dry and wear proper fitting shoes. If you see blood or pus in a blister, seek assistance from a podiatrist.

If you have any questions, please feel free to contact our office located in Philadelphia, PA . We offer the newest diagnostic and treatment technologies for all your foot care needs.