What Causes Blisters and Why They Form

Blisters form between layers of injured skin as a way of cushioning the injury and protecting it from further damage. When friction or some other irritant damages the upper layer of skin (epidermis), it can tear away from underlying layers of skin. The space that is created between the layers then fills up with fluid (serum). Most blisters occur as a result of friction caused by ill-fitting shoes or socks. Other causes of blisters include burns, frostbite, irritants such as insect bites, chemicals and other toxins. Medical conditions like diabetic neuropathy and eczema, as well as certain autoimmune deficiencies, can weaken the outer layer of skin which increases the risk of blisters forming. Aside from removing pressure from the affected area, it is best to leave a blister alone to allow it to heal naturally, which usually happens within a few days. However, if the blister worsens by becoming discolored or excessively inflamed, it may indicate that an infection is present and a podiatrist should be consulted right away.

Blisters may appear as a single bubble or in a cluster. They can cause a lot of pain and may be filled with pus, blood, or watery serum. If your feet are hurting, contact one of our podiatrists of Foot Health Center of Merrimack Valley. Our doctors can provide the care you need to keep you pain-free and on your feet.

Foot Blisters

Foot blisters are often the result of friction. This happens due to the constant rubbing from shoes, which can 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.

Symptoms

(Blister symptoms may vary depending on what is causing them)

• Bubble of skin filled with fluid
• Redness
• Moderate to severe pain
• Itching

Prevention & Treatment

In order to prevent blisters, you should be sure to wear comfortable shoes with socks that cushion your feet and absorb sweat. Breaking a blister open may increase your chances of developing an infection. However, if your blister breaks, you should wash the area with soap and water immediately and then apply a bandage to the affected area. If your blisters cause severe pain it is important that you call your podiatrist right away.

If you have any questions, please feel free to contact one of our offices located in North Andover, and Tewksbury, MA . We offer the newest diagnostic and treatment technologies for all your foot care needs.